Complex sentence: The exercise involved over 110 aircraft and two US Navy destroyers, namely the USS Chafee (DDG 90) out of Seward and the USS O'Kane (DDG 77) out of Homer.
Split into simpler sentences: The exercise involved over 110 aircraft and two US Navy destroyers. The USS Chafee (DDG 90) based its operations out of Seward and the USS O'Kane (DDG 77) participated out of Homer.