Well, you tend to not be alone, though you do tend to send more and other countries that advantage of that and send less.unfortunately we do SJ. when sh*t goes wrong in the world, who does everyone look at to help? the USA.
Now, lets be honest though, when you do get involved its not to FIGHT a war, and it shoudln't be, but to enforce peace and that, like I stated earlier, is a different ball of wax.