Whether you support the IDF or not, or simply want to daven for the safety of our Jewish Brothers and sisters, now seems like an appropriate time to do so or say tehilim.
Everyone who went to shul this morning (unless there was a bris or some other such exemption) said a small piyut composed centuries ago and accepted by Klal Yisroel as an appropriate nusach for these issues. Acheinu kol beis Yisroel, hanusunim batzara uvashivya, etc.