共きょう同どう訓くん練れん

noun

joint exercise; joint training

Used for military, emergency services, or organizational training conducted together by multiple groups.

• 自じ衛えい隊たいと米べい軍ぐんが共きょう同どう訓くん練れんを行おこなった。

  The Self-Defense Forces and the U.S. military conducted a joint exercise.