How to use "warships" in a sentence

This was the Thunder Child, the only one in sight, but far away to the right a column of smoke marked the position of other warships

At the same time, far away in the south-east, the shapes of three warships appeared, beneath clouds of smoke.

But the other warships were now quite close and moving in towards the shore.

The little ship my brother was on continued to move out to sea, and the warships became smaller in the distance.