Complex sentence: While on the recovery missions he encounters Neo-Zeon forces chasing after the AMX-004-3 Quebeley MK.II, seeing the Quebeley posing no threat Judau assists it in destroying the Neo-Zeon squad.
Split into simpler sentences: While on the recovery missions he encounters Neo-Zeon forces pursuing the AMX-004-3 Quebeley MK.II. Seeing the Quebeley posing no threat, Judau assists it in destroying the Neo-Zeon squad.