No.
Talk to your last units clerk and he/she will get the paperwork started.
It would be difficult. It is up to you to attend drills with your unit. You may request to be ING (inactive national guard) by notifying the unit and see if it will be granted.
Yes.
There is such thing as an "Inactive National Guard." There is also the Inactive Reserves. National Guardsmen meet one weekend a month, and train two weeks a year. Often they are activated and deployed. Inactive Reserves may or may not be activated, depending on the need of the service. Actually, there is such a thing as Inactive National Guard. You will need the National Guard Almanac for a more proper definition. I remeber reading about it some years ago. If you cannot complete your enlistment obligation, you can request it through your commander. This is usually done due to a hardship or serious illness. NGR 614-1
The legal commitment to the National Guard is typically eight years. This includes both active duty service and inactive status, during which individuals may be called upon for duty if necessary. The specific length of service may vary depending on the state and branch of the National Guard.
There are actually two National Guards, but when people say the National Guard they are probably (but not necessarily) talking about the Army National Guard. The other National Guard is the Air National Guard which is to the Air Force what the Army National Guard is to the Army.
No. There is only an Army National Guard and an Air National Guard.
There is the Army National Guard and the Air National Guard.
Yes. Each state has National Guard units.
No the National Guard does not have submarines. The National Guard is primarily a ground fighting organization. The Air National Guard does provide for air support within the US.
The National Guard and Air National Guard can be (and have been) deployed. The Puerto Rico State Guard cannot.
weird.. when I left active duty as an E5, I entered the National Guard as an E5. It might happen if there weren't any positions in their MOS for someone of their pay grade, but it's not the norm.