At first glance, the wars in Israel and Ukraine seem unrelated and bear little similarity. One is a rapid-response counterterrorism operation, the other a years-long, multi-front defensive action focused on reclaiming and protecting sovereign territory. But what is at stake in both conflicts will have rippling effects for generations to come, far beyond Israel and Ukraine. These are existential struggles against murderous aggressors who possess no regard for human rights or civil liberties. Unprovoked, both Hamas and Russia used spurious historical justifications as casus belli to invade democratic countries that they wish to wipe off the map. Their position is...