Defense Secretary Pete Hegseth has canceled a planned deployment of 4,000 U.S. troops to Poland, according to defense officials.

The deployment cancellation was announced without immediate explanation from the Pentagon or Defense Department leadership. The decision represents a significant change to previously planned military operations in Eastern Europe.

Poland has maintained close military and diplomatic ties with the United States, particularly since Russia's invasion of Ukraine in 2022. The country has served as a key staging ground for Western military aid to Ukraine and has hosted rotating U.S. forces as part of NATO's enhanced presence in Eastern Europe.

The canceled deployment would have represented a substantial increase in U.S. military presence in the region. American forces have maintained a regular presence in Poland through various rotational deployments and joint training exercises.

Neither the Pentagon nor Hegseth's office provided details about the reasoning behind the cancellation or whether the deployment might be rescheduled for a later date. Polish officials have not yet commented publicly on the decision.