U Wasawa was born in Muukwa village, Taze, Myanmar.[4] He is the abbot of the Tharthana Alinnyaung monastery in Hmaw Taw village[5] and was a prominent former leader of the now defunct Ma Ba Tha, an extremist Buddhist organisation. Following the 2021 Myanmar coup d'état, U Wasawa established a Pyusawhti militia to launch offensives against the region's People's Defense Force. Several villages in Kantbalu have been turned into Pyusawhti bases, with U Warthawa reportedly forcing locals to join the militias. Initially armed with homemade weapons, around 900 Pyusawhti members in Kantbalu have since been supplied with modern BA-63 (G-3) rifles, MA-1 assault rifles, and carbines. His influence has spread to Kanbalu, Taze, and Kyunhla—key towns known for their military and Union Solidarity and Development Party support.[6] He has since expanded his network throughout Sagaing, where there are now at least 77 pro-junta militia groups.[1][7][8]
Following the fall of Lashio in August 2024, U Wasawa urged the military to bomb the northern part of Shan State, controlled by the Three Brotherhood Alliance, stating that it would be better if only the land remained.[9] In a media interview, he called for the removal of villages that support the People's Defense Force (PDF) from the map of Myanmar.[10] He ordered his forces to set fire to 10 villages in Khin-U, Sagaing Region, claiming that these villages were supporting the People's Defense Force (PDF).[11][12]
In May 2024, U Warthawa was bestowed the title "Mingala Dhamma Jotikadhaja" by the Young Men's Buddhist Association (YMBA) in recognition of his dedicated service to the wellbeing of the patriarch and religious affairs.[13]