Quote from : X-Men: Days of Future Past Movie

Bolivar Trask: [to Congress] When you sent our soldiers to Vietnam without the proper weapons to win the war, you underestimated your enemy. Do it with this enemy and it won't be some skirmish halfway across the globe. This time, it will be for our homes, our streets and by the time you see the need for my program, it'll been too late and you would've lost two wars in one lifetime.