Always... Army Reserve is a proper noun.
If you are in the Army your fulltime job is to be in the Army. If you are in the Reserves you go through the training then go back to your civillian life until needed (train one weekend a month). Two separate gigs- army and army reserves. Lots of people will stay in reserves after their time as full time.
608-1
The Army Reserve is entirely funded by the federal government.
the air force or reserves because when you are deployed it is to less hot spots Army reserves always go to war! the air force or reserves because when you are deployed it is to less hot spots Army reserves always go to war!
USARC Reg 608-1
You can be called to active duty.
The same as the active duty army and reserves do.
Yes. They are separate components, with their own recruiting.
The ARMY is divided into four sub-branches the regular army- special operations- Army national guard - and army reserves at least that's how the U.S. ARMY works
No, you are required to cut all hair to a certain length.
In terms of people, just over 30,000 in the standing army and about the same in the various levels of the Reserves.
Usarc reg 608-1, para 1-1