Multinational Division South-East (MND-SE) is a NATO headquarters based in Bucharest, Romania, focused on supporting the security of Allied territory and populations in NATO’s south-eastern region. Under the operational control of Headquarters Multinational Corps South-East, it is prepared to provide division-level command and control for an Article 5 collective defence operation. Such an operation would follow NATO advance planning and require authorization by the North Atlantic Council, with direction from the Supreme Allied Commander Europe.

MND-SE’s work is part of NATO’s wider military command structure, with links to SHAPE, Joint Force Command Naples, LANDCOM and MNC-SE. The headquarters shares information about its mission, command structure, operations and leadership through its website and newsroom. Its public updates include military exercises, such as Exercise Dacian Lancer 2026, and visits by senior NATO officials.

Major General Cornel Tonea-Bălan assumed command on January 15, 2026. MND-SE also provides public affairs and registry contact channels. Its motto is “Semper Vigilantes,” meaning “Always Vigilant.

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