Marines with Black Sea Rotational Force perform weapons sustainment training to prepare for a multinational training schedule during their deployment. BSRF has more than 17 exercises planned in the Eastern European area of responsibility during their rotation. BSRF is a biannual rotation which acts as a Security Cooperation Marine Air-Ground Task Force through conducting military-to-military engagements and enabling the continuation of regional stability, increasing interoperability, and building and maintaining relationships with allied and partner nations.