The Munroe-class is a light destroyer class in use by the United Nations Navy.
During the UN-MCR War, Sadavir Errinwright sent 6 Munroe-class destroyers to destroy the Rocinante. When notified that Chrisjen Avasarala, a high level United Nations diplomat, had boarded the Rocinante, the destroyers were ordered to continue towards the ship and destroy it. A fleet of more advanced MCRN destroyers was following the UNN ships and, when contacted by Avasarala whom made a request to be defended, engaged the Munroe-class ships. This caught the Munroe-class destroyers by surprise and 3 were destroyed in the engagement with remaining 3 heavily damaged and one surrendering.