If you can shoot one of these weapons well, then you can shoot a modern one very well. It requires a lot more mental discipline to shoot these and hit because the modern weapons are so much more sophisticated.

The more primitive weapons teach what soldiers are supposed to do with the modern weapon.

This is a way to keep history alive.

If one of our troops has a malfunction or runs out of ammunition, he or she can still continue the engagement with opposition weaponry if they know how to use it.

Just because they are old does not mean they are not lethal.

Those countries buying U.S.-built fighters usually arm them with U.S.-built weapons, although there are exceptions, MBDA is aiming to have its air-to-air missiles integrated with the new F-35 Joint Strike Fighter (JSF), which is being developed by the United States, to lessen this advantage.