The $13$th edition Yudh Abhyas $2017,$ a joint military training exercise between India and United States was held at Joint Base Lewis McChord, Washington US. Yudh Abhyas is annual bilateral military exercise, alternately held by the two countries. In this edition of exercise, armies of both countries honed tactical skills in counter-insurgency and counter-terrorist operations (CICT ops) under UN charter.
So, the correct answer is $(A).$