We don't have to. Just watch what happens with Syria this year. Assad is already scared to death, as we are about to impose sanctions on his country.
We invaded Iraq so we wouldn't have to invade the rest.
Being a former Marine, I was pretty upset when the Commandant of the Marine Corps was ordered to go over to China and help them with their beach assault capabilities. I even wrote the Commandant a letter. I got back a response from his office; "The Commandant thanks you for your letter." That was it.
And aren't those countries going to fund our enemies, as they do now? With weaponry? And probably money.
This country has two faces. One wants to suddenly stamp out terrorists (when they attack us, but world be damned if they hadn't) and one that sends our nuclear and military capabilities to our enemies who will be too eager to use them against us.
And now we want to blame the Pope for calling for peace. LOL hahahahahahahahahahahahahaha