hostile act

In fairness, United Airlines had given me ample warning that it would treat my traveling with children as a hostile act.

The Confederate government had considered the action a hostile act and had acted accordingly.

The War Department had been expecting some hostile act on the part of the Seminoles, and was ready for war.

France does not wish to incur the responsibility, so far as Belgium is concerned, of taking the first hostile act.

Neither the motive nor the perpetrator of this hostile act could be discovered.

But I warn you now, and not so much for your own good as for mine, that I shall shoot you the moment you attempt a hostile act.