U.S. Marines with Bravo Company, Special Purpose Marine Air-Ground Task Force Crisis Response-Africa, rush to the first building while the Bulgarian T-72 tank to provides cover for the assault on Military Operations on Urban Terrain Town during Platinum Lion 16-3 at the Novo Selo Training Area, Bulgaria, May 10, 2016. Hundreds of troops from five NATO countries came together to train with mechanized assets and demonstrate the ability to work seamlessly as one force. - U.S. Marines with Bravo Company, Special Purpose Marine Air-Ground Task Force Crisis Response-Africa, rush to the first building while the Bulgarian T-72 tank to provides cover for the assault on Military Operations on Urban Terrain Town during Platinum Lion 16-3 at the Novo Selo Training Area, Bulgaria, May 10, 2016. Hundreds of troops from five NATO countries came together to train with mechanized assets and demonstrate the ability to work seamlessly as one force.