They're kept in a unit arms room, and drawn out as needed.
you could try a FIOA with the US Army
True
true
Probably not- I am retired from the US Army- and in 23 years, I must have been issued at least 20 different weapons. When you leave a unit, the weapon gets turned in for re-issue to someone else. MOST military weapons did not have a record of the name of the soldier it was issued to. An exception to that were the rifles that were issued to members of the Swiss Army- when you finished training, you took your rifle home, and came back for two weeks of training each year. Many members of the Swiss military had a slip of paper under the buttplate with their name, serial number of the rifle, and their address- in case they misplaced their rifle, it could be returned to them. My Swiss K-31 was issued to Renee, who carried it for 20 years, and turned it in when he retired.
Issued weapons only; for all branches of the US military.
Legal for use in warfare? Yes.
Depends. Which army?
Roman weapons were used by the Roman army.
The Assyrians used iron-forged weapons.
No. Certain items (including weapons) are standard issue, and that's what you get. If you have an interest in operating a certain weapons system, you can express an interest, and maybe your chain of command will consider it, but, otherwise, you get issued with whatever they decide to issue you, dependent on your function in your unit and that unit's MTOE.
You are not allowed to buy weapons when you are in the British army. This is against the laid down rules and regulations. It is the military that assigns its soldiers the weapons.
The roman army did not use nuclear weapons.