line of defense
line of defence

The first line of defence for the trade union movement is you.

You were right, he had another line of defence in place.

This line of defence is no better than the first.

It might at any rate be a line of defence.

It was to be the last line of defence before the keep itself.

This has to be right to get you past that first line of defence.

The main German defence line was now seven miles away.

When his first line of defence failed him, there was too much ground to make up.

He established himself in the team and was a main last line of defence at the club until 1955.

The city was to be surrounded by four lines of defence.