The U.S. Air Force has been flying HH-60 combat rescue helicopters now for over four decades. The venerable HH-60G Pave Hawk is finally being replaced by an improved HH-60W that the Air Force has dubbed Jolly Green II in homage to the 'Jolly Green Giant' rescue helicopters of the Vietnam war.
The HH-60W, as well as its predecessor, is armored and armed; combat rescue is a dangerous business! There is a 7.62mm minigun or a .50 machine gun on each side. Fuel capacity has been considerably increased for more range and that can be further extended through aerial refueling.
https://en.wikipedia.org/wiki/Sikorsky_HH-60_Pave_Hawk