- Ta'ang National Liberation Army is one some 15 armed groups fighting Myanmar's central government
- They are part of a long-simmering -- yet largely hidden -- conflict that has gone on for more than 60 years
- CNN visited the TNLA's stronghold in the mountains of Myanmar's north-eastern Shan State
Pang Law, Myanmar (CNN)They stand guard in a village on a mountain peak that offers commanding views of alpine valleys carpeted with thick jungle and steep tea plantations. Fighters dressed in olive green uniforms and bright red kerchiefs carry battered but carefully-maintained AK-47 semi-automatic rifles.