According to U.S. Secretary of Defense Pete Hegseth, the U.S. Army H-60 involved in the mid-air collision with the PSA Arlines CRJ-700 at Reagan Washington National Airport was from Bravo Company 12th Aviation Battalion at Fort Belvoir, Virginia. They were conducting an Annual Proficiency Training Flight during an annual night evaluation. The 12th Aviation Battalion will undergo a 48 hour operational pause as well.