Definition of "under attack" []

• Subjected to enemy attack or censure (adjective)

WordNet. Princeton University. 2010.

• "The Afghan Ministry of Interior said the border policemen came under attack around 1 a.m."
• "He could do little more without artillery and, being wary of coming under attack himself, soon hastily withdrew to Point aux Trembles, twenty miles to the west."
• "One concerns a “defensive” jihad, when a Muslim land is under attack by non-Muslims, while another set of justifications concerns grounds for an “offensive” jihad, which countenances unprovoked attacks on infidels."