Really ironic that I watched that movie last night..
I knew “Broken Arrow” in the USAF as a missing nuke; But a couple of Army guys over here said that it is site overrun by enemy.
Strange 2 services would use the same code with different definitions...
In the book and movie “We Were Soldiers Once, and Young” Broken Arrow was the over run notice requesting full response from every US allied unit nearby to save an overwhelmed unit that was called out by General Hal Moore. His radio operator is a Freeper: Aloha_Ronnie as I recall.
The Navy uses Broken Arrow for nuke weapon incidents as well. They used to have drills on the flight deck.
The nuclear mishap/incident code words are standardized among the services. As nuclear-qualified Field Artillery officer, I kept those in a notebook that was on my person at all times for easy reference during any nuclear inspection.