A serious clash between the parties in the House of Representatives was brought about again by the defense proposal.

There have been at least a dozen serious clashes and assassination attempts in the last two weeks.

One serious clash occurred between these groups, later in 1959.

This one is far from being the most serious clash.

But on Friday, serious clashes began early in the morning.

This claim, along with those of serious clashes, cannot be verified.

In certain places fighting is still going on, but more serious clashes have not been reported so far.

The necessary tax increases led to serious clashes with the estates.

It was the most serious clash for the American-led coalition in months.

"We are going to have a serious clash with the Turks," he says.