Great post, Scotsman.
SoJoCo, our present enemies are the Muslim extremists and Communism in South America, Cuba, Russia, and China. All would love to destroy us. In addition, China is in an expansionist mood and they are quickly growing their military, especially the navy. Why do they need a larger navy? It is not to protect themselves for no one is threatening them. They need it to expand to other shores and to take over raw materials and additional territory. They intend to do that.
If the Muslims take over Europe and the once Great Britain. it is not just, well, too bad Europe. There are several large militaries in Europe and all of them have nuclear weapons. The Muslims love death because of their backward religion and killing us would be the biggest honor they think they can achieve for Allah. That would be a severe threat to you and to me.
Wake up! The time we could be a Fortress America and stay within our own shores has long passed.
If the people in Europe are not willing to defend themselves from the Muslim hordes then we can't do it for them. As much as they would apparently like us to. They have to step up to the plate and contribute to their own security. They apparently don't want to. Instead people expect us to do it in their stead. That isn't in our best interests.