ABSTRACT: THE SHIELD FRACTURES — ANATOMY OF AN ALLIANCE IN CRISIS I. The Geopolitical Trigger: From Rhetorical Warning to Structural Disruption As of 28 March 2026, the geopolitical architecture underpinning European security since 1949 stands at its most precarious inflection point since the Cold War’s conclusion. US President Donald Trump, now in his second term … Leggi tutto THE UNRAVELING SHIELD: US TROOP WITHDRAWAL FROM GERMANY, NATO’S EXISTENTIAL FRACTURE AND THE STRATEGIC VACUUM IN EUROPE’S DEFENSE ARCHITECTURE