U.S. Secretary of State Marco Rubio has declared that the post-Cold War international order has ended, signaling a major shift in global geopolitics as he departed for the 2026 Munich Security Conference. Speaking at Joint Base Andrews, Rubio emphasized that the world is changing “very fast right in front of us,” calling on U.S. allies to reassess their roles and responsibilities in a rapidly evolving security landscape.

The remarks, captured in a video clip of Rubio’s departure, frame the current international environment as a “new era in geopolitics” that demands collective reflection and adaptation. Rubio highlighted that longstanding assumptions about alliance structures and shared responsibilities can no longer be taken for granted, advocating for increased burden-sharing among partners, including in NATO, to address emerging challenges.

Rubio’s message aligns with broader U.S. policy initiatives aimed at strengthening partnerships and ensuring that alliances remain robust and capable in the face of shifting power dynamics. The secretary underscored that rapid technological advances, regional conflicts, and strategic competition require proactive coordination and a willingness among allies to redefine their contributions to collective security.

The Munich Security Conference, which Rubio will attend, serves as a critical platform for discussing defense, economic, and diplomatic strategies with international counterparts. U.S. participation underlines a commitment to both leading and collaborating with allies to navigate a complex, multipolar world where traditional frameworks may no longer suffice.

By framing the current moment as the end of the “old world,” Rubio signals a policy posture that prioritizes adaptability, strategic foresight, and shared responsibility. Observers note that such statements set expectations for allies to engage in deeper cooperation while preparing for new security, economic, and technological challenges on the global stage.

Rubio’s declaration marks a clear acknowledgment that existing international institutions and norms must evolve. The call for reassessment emphasizes both U.S. leadership and the necessity of a coordinated response to rapid global shifts, reinforcing Washington’s intention to maintain strategic influence while encouraging partners to actively participate in shaping the emerging order.