Federation-Klingon War

Federation-Klingon War may refer to:
 * the Four Years War of the 2250s
 * the Federation-Klingon War of 2267
 * the Federation-Klingon War of 2285
 * the Federation-Klingon Cold War
 * the Federation-Klingon War of 2372-2373
 * the Federation-Klingon War of 2405-2410