It is customary to salute foreign officers (friend or foe). It is a mark of mutual respect and acts as a reminder to both parties that they are soldiers and that they each have responsibilities to the other. “If you are an enlisted prisoner of war, you must salute all enemy officers.
Do soldiers salute Allied officers?
It is a requirement to salute all Officers of the Armed Forces (Air Force, Navy, Marines, etc) and Officers of allied nations when you recognize their rank. A salute will not be rendered for Noncommissioned Officers.
Do soldiers have to salute other branches?
salute to all officers and warrant officers of the U.S. Armed Forces, officers of friendly armed forces and authorized civilians of selected state and federal governmental positions. Officers should salute other officers and authorized civilians of higher rank.