The New Mon State Party (Anti-Military Dictatorship) is a splinter group of the New Mon State Party. Its military wing is the Ramonnya Mon Army.
In March 2024, the MNLA-AD participated in their first military operation -the battle of Kawt Bein- alongside other resistance. Resistance captured the town on 25 March before being forced to withdraw a month later.
On 6 October 2024, Mon National Liberation Army Battalion-5, headquartered near Payathonzu, defected and joined the NMSP-AD. The next month, the NMSP-AD announced its intention -alongside the Mon Liberation Army (MLA), Mon State Revolutionary Force (MSRF), and Mon State Defense Force (MSDF)- to cooperate with other Mon resistance and intensify offensive operations.
During a meeting on 19 December, the NMSP-AD, alongside the MLA, MSDF, and MSRF, agreed to take steps to establish a unified Mon Army. To test the feasibility of unification, on 20 January 2025, the NMSP-AD and the other 3 forces agreed to contribute soldiers into a joint force: the Ramanya Joint Column. Each Mon group would contribute 25 soldiers, the column having 100 soldiers in total. The Mon groups also contributed 2 representatives each to the commanding committee, with an NMSP-AD representative being the senior-most officer.
On 24 May 2025, the military wing of the NMSP-AD, the MNLA-AD, and MLA merged into the Ramonnya Mon Army.
The Ramanya Joint Column was disbanded on 19 June due to complications regarding the NMSP-AD/MLA merge. The groups involved stated discussions were ongoing to reassess the columns structure.