About 140 airmen and seven F-15C Eagles from the 48th Fighter Wing at Royal Air Force Lakenheath in England deployed to Lithuania Tuesday, according to U.S. European Command.

The airmen are deploying as the 48th Expeditionary Group to Siauliai air base to assume control of the NATO Baltic Air Policing peacetime collective defense mission, the EUCOM news release said.

The Air Force will command of that mission from the Polish military Wednesday, and the U.S. airmen will “strengthen the bond between Baltic allies through shared capabilities and coordinated efforts to effectively accomplish missions,” the release said.

The deployment was at the request of the United States’ Baltic allies, according to the release.