KH has a well reasoned list of options above. The only thing I'd add to it is the diplomatic option. Increasingly add pressure, get allies involved, refer to the UN, enact and gradually tighten sanctions, then totally isolate them. Chance of success: low to moderate depending on allied involvement. This is the option in play at the moment and should be given a chance before any other options are used. I believe it can work if we can get China and Russia fully on board.

Comment