Battle of Machorta Sound
The battle say Fleet Tertius under Fleetmaster Cassandra VanLeskus engage a vast Chaos force across the Machorta Sound. Conducting a campaign over several light years with five Battlegorups, VanLeskus was able to control the disparate Imperial forces under her command defeat the massive Chaos force with an array of intricate and simultaneous operations. Her lesser commanders and Groupmasters earned individual triumphs, but it was VanLeskus who was recognized as the architect of the victory. Any critics of Guilliman's Indomitus Crusade were soon put to rest by the victory.