The CERN Council, which oversees the world's largest particle accelerator, has publicly opposed the “illegal” military invasion of Ukraine, supported by Belarus, and is looking to cut ties with both nations.

In its latest meeting, the Council announced its plans to terminate the organisation’s International Cooperation Agreements (ICAs) with the Russian Federation and the Republic of Belarus after their 2024 expiration dates. However, the Council is open to amending this decision in the light of developments in Ukraine.

The ICA with Belarus will last until June 2024, while the one with Russia expires in December 2024.

“CERN was established in the aftermath of World War II to bring nations and people together for the peaceful pursuit of science,” the statement said.

“Member States recalled that the core values of the organisation have always been based upon scientific collaboration across borders as a driver for peace, and stressed that the aggression...