NATO Secretary-General Jens Stoltenberg has been instrumental, even inspirational, in mobilizing united alliance support for Ukraine in the face of Russian aggression, as well as in shepherding through the accession of Sweden and Finland into NATO. Stoltenberg has now declared a novel information strategy regarding the West’s nuclear posture. For decades, NATO officials downplayed the nuclear weapons component of its defense strategy for fear of appearing too provocative toward Russia. Nuclear-armed submarines operated stealthily, submerged and invisible to potential enemies and the rest of the world. Last week, however, a U.S. Navy fast-attack submarine surfaced in Cuba’s Guantanamo Bay just...