Below is a link to the full text of FM21-103 as updated from Mar 12th, 1941.
This is the information that soldiers used, and acquired, in WWII.
With WWIII ongoing, any preparation you do know can only help.
At the end of the manual is a checklist you can tl;dr.
This is how you win in court for less!
Have a perfectly peaceful day!
Keep working, stop paying.