phrase requests - How to express a situation where someone puts others in a situation where others have to solve the problem

Is there any proverb to express a situation where someone put others, without asking approval in advance, in a situation where others have to solve the problem?

He knows if he seeks for permission, then he will certainly be refused. So what he did was create a messy situation in the first place, and then ask for permission.
That is what is happening now with the migrant crisis. The migrants illegally smuggled themselves to Europe and then ask for approval, but not the other way around.