The Justice Department has informed European officials that the United States is withdrawing from a multinational group created to investigate leaders responsible for the invasion of Ukraine, including President Vladimir V. Putin of Russia, according to a letter sent to members of the organization on Monday.
The decision to withdraw from the International Center for the Prosecution of the Crime of Aggression against Ukraine, which the Biden administration joined in 2023, is the latest indication of the Trump administration’s move away from President Joseph R. Biden Jr.’s commitment to holding Mr. Putin personally accountable for crimes committed against Ukrainians.
The group was created to hold the leadership of Russia, along with its allies in Belarus, North Korea and Iran, accountable for a category of crimes — defined as aggression under international law and treaties that violates another country’s sovereignty and is not initiated in self-defense.
“The U.S. authorities have informed me that they will conclude their involvement in the ICPA” by the end of March, Michael Schmid, president of the group’s parent organization, the European Union Agency for Criminal Justice Cooperation, better known as Eurojust, wrote in an internal letter obtained by The New York Times.
The group remains “fully committed” to holding to account “those responsible for core international crimes” in Ukraine, he added.
The United States was the only country outside Europe to send a senior prosecutor to The Hague to work with investigators from Ukraine, the Baltic States, Poland, Romania and the International Criminal Court.