The President and Congress can call Reservists for extended periods of time. ... PRESIDENTIAL RESERVE CALL-UP AUTHORITY - The president can call up to 200,000 Reservists and even 30,000 members of the Individual Ready Reserve (IRR). This action can keep members on active duty for up to one year.

How often do reservists get called up?

Volunteer Reserves typically meet for one night per week, train at weekends and, in many cases, attend an annual two week training event or exercise. The minimum commitment is generally 27 days training per annum, though it is 19 days for some specialist units.

Can I get fired for being in the Reserves?

USERRA protects you from discrimination because of your reservist service. This includes your initial employment; an employer can't refuse to hire you because you're in the reserves, and he can't fire you if you join the reserves after you're hired.