Asa college student at St. Andrews University, Louise decided to join the Officers' Training Corps.

She is all about the Army Cadets and has fallen in love with it."

The UOTC also pays its members.

Lady Louise Windsor smiling

Then-Princess Elizabeth was a teenager when World War II began.

At 18, she officially joined the Army through the Auxiliary Territorial Service (ATS).

The ATS was an all-women branch.

Queen Elizabeth II smiling in military uniform

Many jobs were available, and Elizabeth ended up learning to drive and to work as a mechanic.

Elizabeth’s relationship with the military changed after she became queen.

We will remember them all."

Queen Elizabeth II smiling