It would indeed , our military can be stretched thin pretty easily if we are not careful . We dont have the numbers they do , because we dont have the big population they do , and that we really dont need that amount they have to protect our own soil . Not to say that , it cant be compromised by using too much of it overseas . But it all goes back to logistics , they cant get it here in the amount needed to have any chance of success , without us knowing ahead of time that its leaving , you cant hide that . There is no land bridge , so the only way is by air and sea . By air is expedient , but aircraft just dont hold very much . By sea is the only way to get the bulk you need to a destination , and ships dont move very fast , we would know .Then you have an armed population that when push came to shove , would put aside their differences , long enough to repel an invader . That is the only time I think we should worry about a nuclear war happening . If any one of those three countries were to be invaded by any of the three , then I think we would see it . Even a Russia vs China war would suck us into that abyss . Its highly unlikely they would fight , but not totally out of the question either .