The two bases are JFK and OAK.
JFK does a lot of flying throughout Europe and the Middle East, ie... Kuwait, Quatar, Bahrain, Italy, Ireland and Germany. These are frequent destinations. Also, odd ones throughout Africa and Western Asia.
Oak does mostly Mexico, Alaska, Hawaii, Guam, and Eastern Asia ie... Manila, Vietnam, Thailand, Korea, Okinawa, and throughout all of Japan. Just about everything is international.