British forces closed off and combed the area in search of the two, but did not find them.

The German forces had nearly doubled and were closing in on them.

The two forces closed, and then there was no more room for bow- work.

He looked to the west, but that force was also closing in on them.

This enables forces to advance to new positions or to close with the enemy.

These stray forces now closed in and provided cover for his escape.

His forces might be closing in on the Pegasus even now.

The two forces closed upon one another at speed.

But now you're on this track, and other forces are closing in.

And the local forces did close the road behind us, for a time.