The battle took place over the span of a few weeks in the city of Demoso and surrounding villages, eventually ending in a ceasefire between the two parties.

[9] Clashes also broke out on May 23, with the People's Defence Force, the armed wing of the government-in-exile, capturing a military checkpoint in between Loikaw and Demoso.

[11] Residents of Demoso stated that much of the artillery hit civilian homes in Dawngankha Ward and Tanang U Koi village.

[11] Clashes also broke out along the Ngwetaung Reservoir dam between Tatmadaw troops and the Karenni People's Defence Force.

[13] On the night of May 28, clashes broke out again for the first time since the 25th, with PDF forces attempting to recapture the Demoso police station.

[16] On May 31, junta troops used helicopters to bombard Karenni Nationalities Defence Force (KNDF) positions, causing an unknown number of casualties.

[23] By June 9, Tatmadaw forces increased their attacks and incursions onto Dawngankha Ward, while KNDF and PDF controlled most of western Demoso.

Khu Daniel, the leader of the Karenni National Progressive Party (KNPP), released a statement supporting the Demoso PDF.

[24] In clashes on June 11, Lieutenant Colonel Chufe of the KNPP's armed wing, Karenni Army, was killed.

[25] Later, on June 15, clashes in Ngwetaung ward destroyed many houses, and caused refugees to flee towards the city of Demoso.

[27] Residents of Htipo Klo, a group of villages in Demoso township, told the BBC that Tatmadaw troops stationed there were extorting locals out of money, food, and belongings despite the ceasefire.

In the first week of fighting, the Tatmadaw blocked all vehicles from entering or exiting Karenni State, causing food shortages.