wreak havoc
cause havoc

Despite most of their plans cause havoc, he remains loyal to his friend.

All around him men who had caused such havoc in.

It was just fans who thought they could try to cause havoc in my life.

Nor did we have any birds that could cause such havoc.

How much havoc have I caused without even knowing about it?

If they were both blown at the same time it would cause havoc.

Just two of them could have caused havoc if they had got through.

That may not seem like much, but it is enough to cause environmental havoc.

A meeting that failed could cause havoc in the markets.

He said the teachers' union was "looking to cause havoc in the schools."