I think the right thing to do is get world support. Despite what some think, the US should not be a bully nation, nor should we foot the bill for everything which happens in the rest of the world. A coalition means shared expense, as well.
“When all Americans are treated as equal, no matter who they are or whom they love, we are all more free.” -Pres. Obama
"A great democracy does not make it harder to vote than to buy an assault weapon." -Pres. Clinton