Indromil's charge was an Allegiance lead counterattack against the Swarm in the first-contact Battle of the Antaeus Nebula of the Swarm War; lead by Lord Indromil of the fifth Royal Auxillary corps. After three UNSC Triton class destroyers were heavily damaged and pinned down by Swarm vessels, Indromil lead a large battlegroup of Allegiance vessels and destroyed the Swarm ships, leaving one damaged and retreating. Indromil's charge was marked as the first battle, and first success of the Swarm War.