Status of ratification and implementation

Status of Ratification and Implementation of the Kampala Amendments on the Crime of Aggression

 (information as of 7 September 2025)[1]

Ratifications registered with the Depositary of the Rome Statute: 49 States Parties

The following States have ratified the Kampala amendments on the crime of aggression:

State

Ratification Date

State

Ratification Date

Liechtenstein i

8 May 2012

Iceland

17 June 2016

Samoa i

25 September 2012

State of Palestine

26 June 2016

Trinidad & Tobago

13 November 2012

The Netherlands i

23 September 2016

Luxembourg i

15 January 2013

Chile

23 September 2016

Estonia i

27 March 2013

Portugal

11 April 2017

Germany i

3 June 2013

Argentina

28 April 2017

Botswana

4 June 2013

Panama

6 December 2017

Cyprus i

25 September 2013

Ireland

27 September 2018

Slovenia i

25 September 2013

Guyana

28 September 2018

Andorra

26 September 2013

Paraguay

5 April 2019

Uruguay

26 September 2013

Ecuador i

25 September 2019

Belgium

26 November 2013

Bolivia

10 December 2020

Croatia i

20 December 2013

Mongolia

18 January 2021

Slovakia p

29 April 2014

Italy

26 January 2022

Austria i

17 July 2014

Sweden

26 January 2022

Latvia p

26 September 2014

Peru

14 October 2022

Spain

26 September 2014

Niger

14 April 2023

Poland p

26 September 2014

Ukraine 

1 January 2025

San Marino

14 November 2014

Denmark

1 January 2025

Georgia i

5 December 2014

Timor-Leste

30 May 2025

Malta

29 January 2015

Seychelles

1 July 2025

Costa Rica

5 February 2015

 

 

Czech Republic i

12 March 2015

 

 

Switzerland

10 September 2015

 

 

Lithuania p

7 December 2015

 

 

Finland i

30 December 2015

 

 

North Macedonia i

1 March 2016

 

 

El Salvador

3 March 2016

 

 

 

i – has implemented the Kampala Definition of the crime of aggression. See also here.

p – has pre-existing domestic laws criminalizing aggression that overlap with the Kampala Amendments

[1] For the status of ratification, see also UNTC. Information on implementations were compiled from the questionnaire distributed by the Liechtenstein Mission, consultations with government officials, and from the mobilization of the members and the monitoring by the staff of Parliamentarians for Global Action (PGA); additional information provided by the Coalition for the International Criminal Court. For queries, additions or corrections please contact jennifer.trahan@att.net .  A version of this Status Report, along with the Kampala Ratification and Implementation Handbook, are available for download at www.crimeofaggression.info.