Professor
Wolff Heintschel von Heinegg
„Law of Naval Warfare and Neutrality at Sea”
Law of Naval
Warfare and
Neutrality at
Sea
Overview
1.
1.
Law of Naval Warfare (Applicability)
Law of Naval Warfare (Applicability)
2.2.
Law of (Maritime) Neutrality
Law of (Maritime) Neutrality
3.3.
Sources
Sources
4.4.
Area of Naval Warfare
Area of Naval Warfare
5.5.
Basic Principles
Basic Principles
6.6.
Military Objectives and Protected Objects in
Military Objectives and Protected Objects in
Naval Warfare
Naval Warfare
Law of Naval Warfare
Applicability
-
Common Art. 2 GC 1949
Common Art. 2 GC 1949
“
“
Internationalized
Internationalized
”
”
Armed Conflicts (Art. 1,
Armed Conflicts (Art. 1,
para
para
. 4 AP I)?
. 4 AP I)?
Military Enforcement Measures Authorized
Military Enforcement Measures Authorized
by the UN Security Council
by the UN Security Council
MOOTW?
MOOTW?
Law of (Maritime) Neutrality
Scope of Applicability DisputedScope of Applicability Disputed
Still, essentials continue to serve a highly important Still, essentials continue to serve a highly important purpose:
purpose:
–
– Protect nonProtect non--participating States, their navigation and aviation, participating States, their navigation and aviation, and their nationals
and their nationals
–
– Protect belligerent interestsProtect belligerent interests –
– Prevent escalationPrevent escalation
In any event, In any event, wrtwrt maritime neutrality general consensus maritime neutrality general consensus on:
on:
–
– Protection of Protection of ““neutral watersneutral waters”” –
Sources
Treaties (e.g., 1856 Paris Declaration, 1907
Treaties (e.g., 1856 Paris Declaration, 1907
Hague Conventions, 1936 Submarine
Hague Conventions, 1936 Submarine
Protocol)
Protocol)
Customary International Law
Customary International Law
Domestic Law/Instructions
Domestic Law/Instructions
Secondary Sources
Secondary Sources
–
– Oxford ManualOxford Manual –
– San Remo ManualSan Remo Manual –
Area of Naval Warfare
Internal (and Archipelagic) Waters and Territorial
Internal (and Archipelagic) Waters and Territorial
Sea Areas of the Belligerents
Sea Areas of the Belligerents
–
– Problem #1: International StraitsProblem #1: International Straits –
– Problem # 2: Archipelagic Sea LanesProblem # 2: Archipelagic Sea Lanes
Subject to the due regard principle:
Subject to the due regard principle:
–
–
Contiguous Zones, EEZ, and CS Areas of
Contiguous Zones, EEZ, and CS Areas of
Neutral States
Neutral States
–
“Neutral Waters”
“
“
Neutral Waters
Neutral Waters
”
”
defined
defined
General Protection of Neutral Waters
General Protection of Neutral Waters
Basic Obligations of Neutral States
Basic Obligations of Neutral States
Use of Neutral Ports and Roadsteads by
Use of Neutral Ports and Roadsteads by
Belligerents
Belligerents
Innocent Passage through Neutral TS
Innocent Passage through Neutral TS
Law of Naval Warfare
Basic Principles
-
Entitlement to employ methods and means of naval Entitlement to employ methods and means of naval
warfare (including prize measures)
warfare (including prize measures)
No Unlimited Right No Unlimited Right ……
No Direct Attack against Civilian Population or Civilians No Direct Attack against Civilian Population or Civilians
and Civilian Objects
and Civilian Objects
No Attack against persons and objects No Attack against persons and objects ““hors de combathors de combat””
Principle of DistinctionPrinciple of Distinction
Precautions in AttackPrecautions in Attack
Entitlement
Warships
Warships
Military Aircraft
Military Aircraft
NOT
NOT
:
:
–
– Auxiliary VesselsAuxiliary Vessels –
– Merchant VesselsMerchant Vessels –
– State Aircraft other than military aircraft (e.g., State Aircraft other than military aircraft (e.g., customs and police aircraft)
customs and police aircraft)
–
Definition: Warship
A ship belonging to the armed forces of a State
bearing the external marks distinguishing the
character and nationality of such a ship
under the command of an officer duly
commissioned by the government of that State and
whose name appears in the appropriate service list
or its equivalent
and
Warship (contd.)
Definition applies to surface Definition applies to surface
and subsurface ships
and subsurface ships
Does definition cover Does definition cover unmanned vehicles?
Warship (contd.)
Background: Abolition of
Background: Abolition of
Privateering
Privateering
by the
by the
1856 Paris Declaration Respecting Maritime
1856 Paris Declaration Respecting Maritime
Law
Law
Reaffirmed by the 1907 Hague Convention (VII)
Reaffirmed by the 1907 Hague Convention (VII)
Relating to the Conversion of Merchant Ships
Relating to the Conversion of Merchant Ships
into War
Warship (contd.)
Problem: Civilian Mariners on board WarshipsProblem: Civilian Mariners on board Warships
Note: Hague Convention VII, Art. 4, refers to Note: Hague Convention VII, Art. 4, refers to ““the the crew
crew”” that must be subject to military discipline; the that must be subject to military discipline; the customary definition of
customary definition of ““warshipwarship”” merely refers to merely refers to ““a a crew
crew””
NO violation of the law of naval warfare (and of NO violation of the law of naval warfare (and of
LOAC) if civilian mariners contribute to operation of a
LOAC) if civilian mariners contribute to operation of a
warship
warship
Definition: Military Aircraft
An aircraft operated by commissioned units of
An aircraft operated by commissioned units of
the armed forces of a State
the armed forces of a State
Having the military marks of that State
Having the military marks of that State
Commanded by a member of the armed forces
Commanded by a member of the armed forces
and
and
Manned by a crew subject to regular armed
Manned by a crew subject to regular armed
forces discipline
forces discipline
Military Aircraft (contd.)
Definition covers all Definition covers all
military aircraft
military aircraft
Does definition cover Does definition cover UAVs
Definition: Auxiliaries
Vessel, other than a warship
Vessel, other than a warship
Owned by or under the exclusive control of
Owned by or under the exclusive control of
the armed forces of a State and
the armed forces of a State and
Used for the time being on government non
Used for the time being on government non
-
-commercial service
commercial service
Principle of Distinction
Parties to the conflict shall at all times
distinguish between civilians or other
protected persons and combatants and
between civilian or exempt objects and
military objectives
(Specially) Protected Enemy
Vessels and Aircraft
If engaged in their normal/innocent role,If engaged in their normal/innocent role,
If not committing acts harmful to the enemy,If not committing acts harmful to the enemy,
If complying with legitimate belligerent ordersIf complying with legitimate belligerent orders
If not intentionally hampering movement of belligerent If not intentionally hampering movement of belligerent forces
forces
–
– Hospital Ships and Medical AircraftHospital Ships and Medical Aircraft –
– Coastal Rescue Craft and Medical TransportsCoastal Rescue Craft and Medical Transports –
– Vessels engaged in the transport of specially protected culturalVessels engaged in the transport of specially protected cultural property
property
–
Basic Principles
No unlimited right No unlimited right ……. = methods and means of naval . = methods and means of naval warfare subject to LOAC
warfare subject to LOAC
LOAC general/basic principles also apply to naval warfareLOAC general/basic principles also apply to naval warfare
E.g., Principle of DistinctionE.g., Principle of Distinction
E.g., Precautions in AttackE.g., Precautions in Attack
E.g., prohibition of unnecessary sufferingE.g., prohibition of unnecessary suffering
E.g., prohibition of attacking persons E.g., prohibition of attacking persons ““hors de combathors de combat”” (shipwrecked, wounded, surrendered)
(shipwrecked, wounded, surrendered)
E.g., humanity (duty to rescue survivors)E.g., humanity (duty to rescue survivors)
E.g., prohibition of perfidyE.g., prohibition of perfidy
–
Hospital Ships: Current Issues
Is the transmission
Is the transmission
and reception of
and reception of
encrypted data by
encrypted data by
medical military
medical military
ships legal under
ships legal under
international law
international law
and the law of
and the law of
Can hospital ships
Can hospital ships
be armed for
be armed for
purposes of force
purposes of force
protection, and if
protection, and if
so, what are the
so, what are the
limitations on the
limitations on the
types and numbers
types and numbers
Use of encrypted communication devices: Geneva Convention II
““Hospital ships may not possess or use a secret code Hospital ships may not possess or use a secret code for their wireless or other means of communication.
for their wireless or other means of communication.””
En En particulierparticulier, les , les naviresnavires--hôpitauxhôpitaux ne ne pourrontpourront poss
possééderder nini utiliserutiliser de code secret de code secret pour pour leursleurs é
émissionsmissions par T.S.F. par T.S.F. ouou par tout par tout autreautre moyenmoyen de de communication.
communication.
Permissible to have Permissible to have ““apparatus exclusively intended apparatus exclusively intended to facilitate navigation or communication
to facilitate navigation or communication””
Use of neutral observers to verify complianceUse of neutral observers to verify compliance
Advances in technology since 1949Advances in technology since 1949ÆÆuuse of se of encryption for routine activities, not just
Use of encrypted communication devices:
San Remo Manual
Hospital ships must be Hospital ships must be ““innocently employedinnocently employed”” in in their normal role
their normal role
Cryptographic equipment Cryptographic equipment ““should be permittedshould be permitted””
Advocates a change in current law, BUTAdvocates a change in current law, BUT
Equipment shall NOT be used Equipment shall NOT be used ““to transmit to transmit
intelligence data nor in any other way to acquire
intelligence data nor in any other way to acquire
any military advantage
Arming Hospital Ships: GCII
Ships may not be used Ships may not be used ““to commit, outside their to commit, outside their humanitarian duties, acts harmful to the enemy
humanitarian duties, acts harmful to the enemy””
Crews may be armed Crews may be armed ““for the maintenance of for the maintenance of
order, for their own defense or that of the sick and
order, for their own defense or that of the sick and
wounded
wounded””
BUT: what about the right of selfBUT: what about the right of self--defense against defense against illegal attacks, especially by non
Arming Hospital Ships:
San Remo Manual
““Hospital ships may be equipped with purely Hospital ships may be equipped with purely deflective means of
deflective means of defencedefence, such as chaff and , such as chaff and flares.
flares.””
SelfSelf--defense is permitted as long as it cannot be defense is permitted as long as it cannot be interpreted as potentially aggressive
interpreted as potentially aggressive
Hospital Ships: Current Practices
OnlyOnly the US has the US has hospital hospital ships (UK ships (UK has turned to
has turned to ““fighting hospital fighting hospital ships
ships””))
Direct changes in international law Direct changes in international law
through introduction and practice
through introduction and practice
rather than amendments to
rather than amendments to
international conventions
international conventions
USN installed both encrypted USN installed both encrypted
communication devices and 50
communication devices and 50
caliber machine guns on the USS
caliber machine guns on the USS Comfort
Comfort before deployingbefore deploying it in it in support of Operation Iraqi
Hospital Ships: Crypto and Arming
Cryptographic equipment essential for effective Cryptographic equipment essential for effective
performance of humanitarian function
performance of humanitarian function
Modern Communication technology is necessarily Modern Communication technology is necessarily
based on encryption
based on encryption
GC II does not prohibit legitimate selfGC II does not prohibit legitimate self--defensedefense
Accordingly, all measures necessary to meet a given Accordingly, all measures necessary to meet a given threat, including the arming of hospital ships, are in
threat, including the arming of hospital ships, are in
accordance with the specially protected status
Military Objectives
Military Objectives defined
Military Objectives defined
Enemy Warships, Auxiliaries, and Military
Enemy Warships, Auxiliaries, and Military
Aircraft (incl. Unmanned Vehicles)
Aircraft (incl. Unmanned Vehicles)
Enemy Merchant Vessels
Enemy Merchant Vessels
Enemy Civil Aircraft
Enemy Civil Aircraft
Neutral Merchant Vessels
Neutral Merchant Vessels
Definition: Military Objectives
Objects which by their
Objects which by their
– – nature, nature, – – location, location, – – purpose purpose or or – – use use
make an effective contribution to military action
make an effective contribution to military action
and
and
Enemy warships and military aircraft are always legitimate military objectives wherever and whenever
Enemy Auxiliary Vessels
Make, by their purpose or use, an effective
Make, by their purpose or use, an effective
contribution to military action
contribution to military action
Therefore, their
Therefore, their
neutralisation
neutralisation
will regularly
will regularly
offer a definite military advantage
Merchant Vessels as
Legitimate Military Objectives
“
“
Merchant Vessel
Merchant Vessel
”
”
defined
defined
1936 London Protocol
1936 London Protocol
Exceptions under the London Protocol
Exceptions under the London Protocol
Nuremberg Judgment
Nuremberg Judgment
Merchant Vessels contributing to the enemy
Merchant Vessels contributing to the enemy
’
’
s war
s war
fighting effort
fighting effort
Definition: Merchant Vessel
Vessel, other than a
warship, an
auxiliary vessel, or
a State vessel such
as customs or
police vessel, that
is engaged in
1936 London Protocol
“. . . A warship, whether surface vessel or
submarine, may not sink or render incapable
of navigation a merchant vessel without
having first placed passengers, crew and
ship’s papers in a place of safety . . .”
Exceptions under the 1936 Protocol
“… except in the case
– of persistent refusal to stop on being duly
summoned, or
Clarification of the definition of “merchant
vessel” by the commission of legal experts of
the 1930 London Conference
“The Committee wish to place it on record that
the expression ‘merchant vessel’, where it is
employed in the declaration, is not to be
understood as including a merchant vessel which
is at the moment participating in hostilities in such
a manner as to cause her to lose her right to the
immunities of a merchant vessel.”
Nuremberg Judgment
“In the actual circumstances of this case, the
Tribunal is not prepared to hold Doenitz guilty
for his conduct of submarine warfare against
British
armed merchant ships
.”
Enemy Merchant Vessels as
Legitimate Military Objectives, if …
Engaging in belligerent acts on behalf of the enemy
Acting as an auxiliary to an enemyas an auxiliary to an enemy’’s armed forcess armed forces
Being incorporated into or assisting the enemyBeing incorporated into or assisting the enemy’’s s intelligence gathering system
intelligence gathering system
Sailing under convoy of enemy warships or military Sailing under convoy of enemy warships or military
aircraft (= presumption of resistance to visit and search)
aircraft (= presumption of resistance to visit and search)
Being armed to an extent that they could inflict damage Being armed to an extent that they could inflict damage
to a warship
to a warship
Enemy Civil Aircraft
May be attacked if performing functions rendering them May be attacked if performing functions rendering them
legitimate military objectives
legitimate military objectives
However, civil airliners are specially protectedHowever, civil airliners are specially protected
Civil airliners are civil aircraft that are clearly marked Civil airliners are civil aircraft that are clearly marked and engaged in carrying civilian passengers in
and engaged in carrying civilian passengers in
scheduled or non
scheduled or non--scheduled services along Air Traffic scheduled services along Air Traffic Service routes
Service routes
Civil airliners are exempt from attack only if theyCivil airliners are exempt from attack only if they –
Neutral Merchant Vessels
Merchant Vessels are considered neutral if flying the Merchant Vessels are considered neutral if flying the
flag of a neutral State (prima facie evidence only !)
flag of a neutral State (prima facie evidence only !)
Enemy character can be determined by registration, Enemy character can be determined by registration,
ownership, charter or other criteria
ownership, charter or other criteria
Neutral merchant vessels are subject to visit and search Neutral merchant vessels are subject to visit and search
(and capture)
(and capture)
Neutral merchant Vessels as
Legitimate Military Objectives if …
Breaching or attempting to breach a blockadeBreaching or attempting to breach a blockade
Resisting visit, search, and captureResisting visit, search, and capture
Engaging in belligerent acts on behalf of the enemyEngaging in belligerent acts on behalf of the enemy
Acting as enemy auxiliariesActing as enemy auxiliaries
Incorporated into or assisting the enemyIncorporated into or assisting the enemy’’s intelligence s intelligence system
system
Methods and Means of Naval
Warfare
Surface Warships, Military Aircraft, and
Surface Warships, Military Aircraft, and
Submarines (including unmanned vehicles)
Submarines (including unmanned vehicles)
Missiles and Guns
Missiles and Guns
Naval Mines
Naval Mines
Torpedoes
Torpedoes
Blockade
Blockade
“
“
Zones
Zones
”
”
Submarines
1936 London Protocol:1936 London Protocol:
Customary Law (San Remo Manual):Customary Law (San Remo Manual):
“In their action with regard to merchant
ships, submarines must conform to the
rule of International Law to which surface
ships are subject.”
Naval Bombardment
1907
1907 Hague Convention IX:Hague Convention IX:
May not attack undefended May not attack undefended
towns, villages, dwellings, or
towns, villages, dwellings, or
buildings
buildings
In sieges and attacks, spare In sieges and attacks, spare
buildings dedicated to
buildings dedicated to
religion, art, science, or
religion, art, science, or
charitable purposes, historic
charitable purposes, historic
monuments, hospitals...
monuments, hospitals...
Provided they are not being Provided they are not being
used for military purposes
Naval Bombardment
Hague IX and Additional Protocol I
Hague IX and Additional Protocol I
Distinguish between civilians or other
Distinguish between civilians or other
protected persons and combatants and civilian
protected persons and combatants and civilian
or exempt objects and military objectives
or exempt objects and military objectives
Forbidden to:
Forbidden to:
–
–
cause superfluous injury/unnecessary
cause superfluous injury/unnecessary
suffering
suffering
–
Naval Bombardment
Protocol I, Art 51(5)(a):Protocol I, Art 51(5)(a):
“
“an attack by bombardment an attack by bombardment by any methods or means
by any methods or means
which treats as a single
which treats as a single
military objective a number
military objective a number
of
of clearlyclearly separated and separated and distinct military objectives
distinct military objectives
located in a city, town,
located in a city, town,
village, or other area
village, or other area”” is is prohibited.
prohibited.
Not a complete banNot a complete ban
Is Is ‘‘clarityclarity’’ a matter of a matter of –– –
– Objective determination, Objective determination, or
or
–
– Subjective appreciation Subjective appreciation (poor weather/visibility)?
Missiles and Guns
San Remo Manual:San Remo Manual:
“Missiles and projectiles, including those
with over-the-horizon capabilities, shall be
used in conformity with the principles of
target discrimination …”
Torpedoes
San Remo Manual:San Remo Manual:
“It is prohibited to use torpedoes which do
not sink or otherwise become harmless
Mine Warfare at Sea
1907 Hague Convention VIII restricted to 1907 Hague Convention VIII restricted to
“
“automatic submarine contact minesautomatic submarine contact mines””
However, Hague VIII contains general principles However, Hague VIII contains general principles
that apply to modern naval mines as well
that apply to modern naval mines as well
Accordingly, mine warfare at sea is governed by Accordingly, mine warfare at sea is governed by
the rules laid down in the San Remo Manual,
the rules laid down in the San Remo Manual,
paras
Blockade
Belligerent operation to prevent vessels and/or
Belligerent operation to prevent vessels and/or
aircraft of all States from entering or exiting
aircraft of all States from entering or exiting
specified ports/airfields of the enemy
specified ports/airfields of the enemy
Blockade:
Blockade:
–
– Must be established by declaration & notificationMust be established by declaration & notification –
– Applied with impartialityApplied with impartiality –
– Effective (i.e. enforced Effective (i.e. enforced –– question of fact)question of fact) –
– Must not block access to neutral portsMust not block access to neutral ports –
– Must allow food or supplies for survival of civilian Must allow food or supplies for survival of civilian population to pass through
“Zones”
War Zones, Military War Zones, Military
Areas, Barred Areas,
Areas, Barred Areas,
Operational Zones Operational Zones ExamplesExamples – – WWI/WWII WWI/WWII Exclusion/War Zones Exclusion/War Zones – – UK/Argentine UK/Argentine Exclusion Zones (1982) Exclusion Zones (1982)
Zones to be Distinguished from …
Blockade
Blockade
Control of the Immediate Area of Naval
Control of the Immediate Area of Naval
Operations
Operations
Zones: San Remo Manual
105. A belligerent cannot be absolved of its duties
under international humanitarian law by
establishing zones which might adversely affect
the legitimate uses of defined areas of the sea.
Zones: ILA Helsinki Principles
3.3 Special Zones
Subject to Principle 5.2.9 and without prejudice to the rights of commanders in the zone of immediate naval operations, the establishment by a belligerent of special zones does not confer upon that belligerent rights in relation to neutral shipping which it would not otherwise possess. In particular, the establishment of a special zone cannot confer upon a belligerent the right to attack neutral shipping merely on account of its presence in the zone.
Zones: NWP 1-14, para. 7.9
[…] To the extent that such zones serve to warn neutral vessels and aircraft away from belligerent activities and thereby reduce their exposure to collateral damage and incidental injury (see paragraph 8.1.2.1), and to the extent that they do not unreasonably interfere with legitimate neutral commerce, they are undoubtedly lawful. However, the establishment of such a zone does not relieve the proclaiming belligerent of the obligation under the law of armed conflict to refrain from attacking vessels and aircraft which do not constitute lawful targets. In short, an otherwise protected platform does not lose that protection
Zones: Definition & Legal Limits
Definition:
Definition:
A method of naval warfare applied in a clearly
specified sea area in which a belligerent pursues
one of, or a combination of, the following aims:
)
Containing the geographic area of naval
warfare
)
Protecting neutral/innocent shipping (and
aviation) against the harmful effects of naval
operations or
Zones: Legal Limits
Prior notification specifying the location, duration and Prior notification specifying the location, duration and
extent of the zone and of the measures to be imposed
extent of the zone and of the measures to be imposed
within the zone
within the zone
No No ““freefree--fire zonefire zone””/No derogation from the law of naval /No derogation from the law of naval warfare, i.e. the same body of law applies both inside and
warfare, i.e. the same body of law applies both inside and
outside the zone
outside the zone
Extent, location and duration of the zone and the measures Extent, location and duration of the zone and the measures
imposed shall not exceed what is strictly required by
imposed shall not exceed what is strictly required by
military necessity and the principle of proportionality
Visit, Search, Diversion, and Capture
(Prize Law)
Vessels and Aircraft exempt from prize measures
Vessels and Aircraft exempt from prize measures
Vessels and Aircraft subject to visit and search
Vessels and Aircraft subject to visit and search
Diversion for the purpose of visit and search
Diversion for the purpose of visit and search
Diversion for other purposes?
Diversion for other purposes?
Vessels and Aircraft subject to capture
Vessels and Aircraft subject to capture