Baelz took part in many ground operations against the Federal Erusian Army during the Continental War. However, he could never get air support due to interference from Stonehenge, leading to a feeling of bitterness towards the ISAF Air Force.
On January 24, 2005, Baelz led the 32nd Marine Corps Regiment Unit B during the ISAF's Operation Bunker Shot. Baelz and his unit landed on Crowne Beach ahead of the other ISAF units. His last communication was reporting a squadron of Erusean A-10A Thunderbolt IIs approaching Crowne Beach; he was killed in action shortly afterward. Sergeant Collins assumed his post.