japan
The Free officers Movement started in 1945. It was a clandestine group comprising of nationalistic junior officers in Egypt's armed forces. This group finally instigated the 1952 Egyptian Revolution and establishment of Republic of Egypt.
If they were allowed to speak to an SS officer they would refer to them by their rank, with Mr in front of it.
The Nazis.
of a representative democracy vote to give themselves a pay raise
Gentlemen
That is how navy officers call other officers below their rank, regardless of their gender.
traffic officers
they are officers of the court
cadre
cabinet
5-os
japan
If it's to an audience, I can see courts as a legitimiate place where speaking in large group is applicable. Maybe during the scene of an domestic call (or other related calls) where a large group of people are in attendence. We also can't forget about schools, several officers take the time to talk about drunk driving, drugs, etc.
A group used to train a new military unit is a cadre. However, you would never train a unit using only officers. Non-commissioned officers are essential for training a new unit.
What do you call a group of Dancers?
You stand at the position of attention, and address the Officer as Sir, or Ma'am. Or if it a is a group of male Officers: Gentlemen, a group of female Officers: Ladies.