When naval commanders became political leaders

What examples are there of navies or naval commanders leading coups or taking political power?

Naval figures have exercised political authority as regents, civil-war leaders, and revolutionary commanders, including examples from Romania, Kolchak's White movement, and Cochrane's career.

Examples include a Romanian monarchy governed through an admiral serving as regent and Admiral Alexander Kolchak, who led the strongest White army in the Russian Civil War. Thomas Cochrane's involvement in revolutionary struggles belongs to the same wider pattern. Senior naval command could carry diplomatic, administrative, and political authority alongside operational responsibility.