As High King of the Alliance, Anduin led the assault on Tirisfal Glades with King Genn Greymane as his second-in-command. Their forces managed to corner the Horde in the ruined Capital City, which they began to besiege. The battle was turning in the Alliance's favor until Warchief Sylvanas Windrunner launched a devastating counter-attack on an Alliance siege weapon, which rallied the Horde in driving back their enemies. Anduin ordered his forces to push forward and personally killed several Horde warriors until he was knocked down by a blow from Varok Saurfang, whom Genn swatted aside before trying to help Anduin and being incapacitated by a troll shaman. After fending off a troll warrior who tried to attack him while he was down, the young monarch looked around himself and saw his army wavering. Dropping his father's sword, the young king then conjured a massive dome of Light to heal his forces and to keep the Horde at bay. After the dome ceased, he rallied his reinvigorated forces and told his men to stand united for the Alliance, with both Horde and Alliance forces charging toward each other and resuming the battle.