The Karen National Union says the regime has stopped responding to the recent seizures of outposts with airstrikes.
People’s Defense Forces and ethnic armed organizations ambushed regime forces across the country on Thursday.
The KNLA and a PDF group fought junta Infantry Battalion 283 for an hour before occupying the base in Kyainseikgyi, killing 13 troops and seizing weapons and ammunition.
The Karen National Liberation Army and Kachin Independence Army have reported successful attacks on regime forces in Karen State and Sagaing Region.
As regime losses mount, the Karen National Union said that the combat ability and will to win of junta forces has declined dramatically.
Resistance groups and regime forces are engaged in a fierce battle near the strategic Ukayit Hta military outpost in southeast Myanmar.
The Cobra Column says it killed at least eight soldiers near the Thai border who were trying to reach troops injured earlier in the week.
Two junta jets bombed an Arakan Army base in an area controlled by the KNLA near the Thai border Monday, killing and wounding AA troops and destroying buildings.
Online videos show Karen resistance fighters boasting about their easy victory over regime troops.
Junta jets have entered Thai airspace while flying multiple missions as regime struggles to defend strategic outpost near Myanmar-Thailand border.
According to the Karen ethnic armed organization, nearly 1,800 regime soldiers were killed in clashes with its armed wings in the first five months of the year.
The Karen National Union has told residents of two townships in Bago Region that they no longer have to engage with the junta administration in those areas.
The Karen National Union says the regime is now too weak to defend key assets in Karen State.
The battle for Thay Baw Boe camp was another victory for the ethnic Karen fighters who have overrun several army camps in Karen State since last year.
Thay Baw Boe in Karen State was used by the military to reinforce frontline troops; the KNLA and allied resistance fighters seized it despite being hit by air strikes.