The UNN 3rd fleet was a United Nations Navy fleet that operated during the UN-MCR War.


During the UN-MCR War 5th Fleet was engaged against an MCRN fleet. The engagement was not a success and having lost ten ships to combat and scuttled a further two ships the 5th Fleet made a hard burn towards Jupiter. To cover this retreat 7 ships were forced to remain engaged to the Martian fleet[1].


  1. The Expanse TV series: Season 3, episode 2 - IFF