The Angel Halo is the final super weapon of the Zanscare Empire from Mobile Suit Victory Gundam. It is a giant fortress controlled by a powerful Newtype with a lot of Psychickers in it to use their psychic waves to put humans and animals alike affected by it into sleep. With Fonse Kagatie, the de facto leader of Zanscare Empire, intending to use it to eradicate everyone on Earth.
The Angel Halo is originally built by the combined effort between Zanscare Empire and Jupiter Republic as the means for traveling from Earth to Jupiter, however Zanscare Empire took over the Angel Halo to use it as a weapon and fortress. In order to weaponize it, the Zanscare Empire put twenty thousands of Psychickers in a device and used their abilities to enhance and weaponize the brainwave of the Newtype that is in the control room of the fortress. With that, the brainwave would erase the violent thought of mankind and put any of its victims into a sleep. However, the Angel Halo would becomes truly dangerous when it entered Earth's atmosphere as given enough time it would be powerful enough to degenerate the braincells, which would reduce its victims' mind into that of an infant. Originally, the Zanscare Empire also planned to use it to spread the space pathogens Angel's Call on Earth, but due to a lack of effective vaccine and Angel's Call being too unpredictable and hard to control the plan was eventually scrapped.
One of the weakness of the Angel's Call is a lack of defense system, as a result, it would be guarded by the fleets of Zanscare Empire, including the one of Arbeo Pippinden, Tassilo Vago and Cronicle Asher. Their is also a control ship in the centre of the Angel Halo.
After the Zanscare Empire took over the Angel Halo and converted it to a weapon, they put twenty thousands of Psychickers from around the world into the Angel Halo. Then, Fonse would had queen Maria Pia Armonia to enter the control room of the Angel Halo and pray for peace, telling her that doing that would erase the violent thoughts of mankind. However, Fonse plan to use it to reduce the population on Earth into having the mental status of an infant. It also causes Uso to see hallucinations during the battle. However, midway through the operation, Tasslio betrayed Fonse and forced him to tell Maria about the true purpose of Angel Halo.
Tasslio later took Maria away as he wanted to take over the Zanscare Empire. However, Tasslio eventually killed Maria and he himself was killed by Uso. Shahkti Kareen later volunteered herself to enter the Angel Halo's control room. During that it entered the atmosphere and the Angel Halo was heavily damaged during the battle between League Militarie and Zanscare Empire, causing it to fall apart and killing Fonse in the process. As for Shahkti, she returned to safety together with the control room.