From American college campuses to the cloisters of Western European media rooms, Israel's actions, intentions, and values are once again being misrepresented. Instead of seeing military action as a necessary—albeit gut-wrenching—response to the savagery and nihilism of Hamas, these actions are being portrayed as malicious, opportunistic, and colonialist. For Jews, this prompts feelings of dismay, but also deja vu. After all, we've witnessed, endured (and overcome) this playbook before—during the Cold War when the Soviet Union leveraged antisemitism for its own political ends (as well as an end in itself). In the aftermath of World War II and the establishment...