The 2360s decade covers the period from 2360-2369. The United
Federation of Planets continued with deep space exploration
missions throughout the early portions of the decade; however,
first contact with the Borg and the re-emergence of the Romulan
Star Empire after a 50-year period of isolation began to show
the need for more combat-oriented ships and personnel training.
The Borg threat encouraged Starfleet to develop the Defiant-
class starship, the Federation's first unofficial warship. (Star
Trek: The Next Generation; DS9: "The Search, Part I") The
Romulan Empire made several attempts to destabilize the alliance
between the Federation and the Klingon Empire in this decade.
With the onset of the Klingon Civil War in late 2367, the
Romulans began providing material support to the House of Duras,
a move which would have assured victory for the forces of Duras
and ultimately lead to the dissolution of the Federation-Klingon
alliance. In the end, the Federation exposed the Romulan
connection to the Duras family