Because of this, the four destroyers quickly broke off the engagement and continued to escort the merchant convoy.

Under their protection was a 28-ship merchant convoy .

The allies were thus forced to protect their merchant convoys.

This late point of Castilian merchant convoy has no historical references at all.

He couldn't recall the last time an American submarine went after a real merchant convoy.

Cheyenne had met up with the Chinese merchant convoy and had maneuvered into position.

Arriving on 18 December, she got underway as part of the escort for a merchant convoy.

The task of escorting merchant convoys was still in the future.

On the return voyage she escorted a merchant convoy, departing 30 November.

I would be dubious of traveling with merchant convoys, though; insecure.