Invictus Launch Week (Fleet Week) is an event held the last week of May that marks the beginning of the new recruiting year and graduation of the latest class of officers and pilots of the United Empire of Earth (UEE) Navy.
It originated in SEY 2542 during the First Tevarin War, when the United Planets of Earth (UPE) Tribunal, in need of new soldiers in the face of Tevarin invasion, sent transports from planetary system to planetary system to pick up volunteers and transport them to UPE Naval base Invictus on Mars (Sol IV). It was established as a yearly event under ImperatorIvar Messer I in 2581. Today, although Invictus base no longer exists, the event is still celebrated by the UEE Navy under the same name.