24-25 Sept 2026: States on Three Continents Re-embrace the Atom—Italy revotes it, Germany joins French drill, China accelerates warhead build

Seen in a century-long arc, the week echoes two earlier inflection points: the 1955-63 spread of commercial reactors and the late-1970s ‘Second Nuclear Age’ when Soviet SS-20s, NATO Pershings, and the Three-Mile-Island scare unfolded almost in parallel. Today’s clustering of announcements hints at a third cycle driven by three systemic forces: (1) energy-security and decarbonisation needs after the 2022-24 gas shocks, pushing countries like Italy back to fission; (2) Europe’s search for strategic autonomy as U.S. attention wavers, hence Germany’s unprecedented step toward a non-U.S. nuclear umbrella; and (3) a maturing Chinese deterrent that is eroding the bipolar U.S.–Russia warhead duopoly. While the immediate impacts are administrative or symbolic—Italy still lacks a waste site, Germany will not hold French warheads—history shows that regulatory frameworks and joint drills often precede hardware deployments by roughly a decade (France’s force de frappe was announced 1958, operational 1964). If these trajectories persist, the 2026 turn may mark the moment the post-Cold-War nuclear plateau ended, reshaping power balances and carbon pathways for the next fifty to hundred years.