Second Battlecruiser Squadron (Battlecruiser Squadron 2, BatCruRon 2) was tactical unit of the Grayson Space Navy created during the First Havenite-Manticoran War. BatCruRon 2 was comprised of Raoul Courvosier-class vessels. (HH5) In 1907 PD High Admiral Wesley Matthews decided to reinforce the Endicott Picket with half the Second Battlecruiser Squadron. The remainder likely remained in the Yeltsin's Star System took part in the Fourth Battle of Yeltsin. See: Fourth Battle of Yeltsin