"The only way this can be stopped is by strong outside intervention, and it's clear that it isn't going to happen."

What foreign war was won by outside military intervention without commitment of land forces?

Yes, this crisis could have been avoided, with outside intervention.

But it is still possible that only outside military intervention will be able to halt their aggression.

Would you say there was evidence of outside intervention from a more advanced society?

They fear that this would lead to chaos, with the risk of outside intervention.

He wants Korea to be left alone, without outside intervention.

Was it because, at long last, we were totally alone, apart from any threat of outside intervention?

But without outside intervention, the violence is sure to escalate.

If there were no outside military intervention, he said, the city of 400,000 residents would probably fall.