US and Polish soldiers stand together in formation during the opening ceremony of exercise Panther Assurance 2015, March 21. Nearly 100 Soldiers from the 5th Battalion, 7th Air Defense Artillery Regiment arrived at Sochachew, Poland for a combined training exercise. The air defense Soldiers will train for several days with Polish troops from the 3rd Air Defense Brigade, outside of Warsaw. The US Army Europe based unit traveled 1200 kilometers with their 30 vehicles and other support equipment.