| Name | Description | 
  | Federation-Husnok war [1] | Brief conflict in which a Husnock vessel attacked the Federation colony world of Rana IV. A Douwd who lived on Rana destroyed the entire Husnock species in retaliation when they killed his wife. [1] | 
  | Federation-Klingon war [2] | Short conflict fought between the Federation and Klingons in 2372/3 when the former intervened in the klingon invasion of Cardassia. [2] | 
  | Federation-Klingon war [3] | The first war fought between these two powers, Picard said that a disasterous first contact led to "decades of conflict". Precise details are unclear; there could have been at least one other war prior to TOS. Or no proper war at all - it is not known to what extent a "conflict" is a "war" in Picard's mind. [3] | 
  | Federation-Klingon war [4] | Very brief conflict fought between the Federations and Klingons in 2267. The conflict was aborted before any major fighting by the intervention of the Organians. [4] | 
  | Federation-Talarian war [5] | Fought prior to TNG. The Talarians were apparently heavily outclassed by the Federation, but did win at least some ground actions. [5] | 
  | Federation-Tholian conflict [6] | Conflict apparently fought between the Federation and Tholians in 2353 - the Tholians attacked a Federation starbase in this year, badly injuring Kyle Riker. It is not known if this was a full blown war.  [6] | 
  | Federation-Tzenkethi war [7] | Conflict between the Federation and Tzenkethi. Sisko's refers to "the LAST Federation-Tzenkethi war" implies that there have been at least two if not more such conflicts. [7] Details are few, but since Sisko fought in the war whilst a first officer on the USS Okinawa, the last war would probably have taken place around 2365-69. [8] |