You're worng. There were seven:
2328:
February: First Cease-Fire established.
2329:
January: Second Cease-Fire established.
December: Third Cease-Fire established.
2331:
January: The Collapse of the Talina Nodes. Though known for their instability, the nodes to the Talina system had been stable enough for the GTA to use the system as a major supply dump. In late December 2330, however, the system was contested when a PVN fleet entered via the Vega system forcing the GTA to withdraw key equipment and personnel. By January Vasudan and Terran scientists had independently determined that both nodes into the system were due to collapse to an unusable state within only a few weeks. The commanding officers of both the GTA and PVN fleet called a cease-fire and jointly organized an evacuation of the system. By late February, the nodes were no longer stable for anything to travel through. For years it was hoped that the nodes would restabilize, but hopes would be dashed after the destruction of the Sol-Delta Serprentis node and the system was finally removed from maps.
March: Fourth Cease-Fire established.
November: Fifth Cease-Fire established.
2335:
January 25th: GTA and PVE sign a cease-fire and non-aggression pact based on the XXXX-YYYY Treaty. The 14-Year War officially comes to an end.
Seven cease-fires during the Fourteen-Year War.
