The information is out there if you look for it. Basically Rohingya militants (terrorists) have been attacking Myanmar authorities and killing their police and military in co-ordinated attacks. In retaliation the Myanmar military are raiding their villages to kill the terrorists they are harboring. The terrorists then burn down parts of the village and blame Myanmar  military to gain sympathy. It's similar to what is going on all over Europe (Islamic terrorist groups attack police causing police to raid Muslim neighborhoods)