In the early hours of 1 February, on the day the newly elected members of parliament were to be sworn in, the military arrested state counsellor Aung San Suu Kyi, President Win Myint and other key figures from the governing National League for Democracy (NLD) party.
Following the arrest of Win Myint, Myint Swe, the former general and military-appointed vice president, was elevated to acting president under section 73(a) of the constitution, which states that the vice president
… who has won the second highest votes in the presidential election shall serve as acting president if the office of the president falls vacant due to his resignation, death, permanent disability or any other cause.
According to the military, this article clearly allowed Myint Swe to take control of the government and a few hours after the arrests a statement was read out on the military-owned television, indicating that the acting president, presumably after consultation with military members of the National Defence and Security Council, had declared a state of emergency for 12 months under section 417 of the constitution.
The nominal rationale for the declaration was that the NLD government had refused to “settle the issue of voter list fraud [together with] a failure to take action … to postpone lower-house and upper-house parliament sessions”. This resulted in “acts or attempts to take over the sovereignty of the Union by wrongful forcible means” that could lead to a “disintegration of national solidarity”.
This argument is a significant stretch in interpreting the constitution. The military has not provided any evidence that fraud was committed in the election, despite arguing that there were 10.5 million potential cases, and the allegations were very unlikely to cause national disintegration since clearly most of the population approved of the result. The NLD’s landslide win in November was almost identical in scale to every other election contested by the NLD held under the military and its proxies, in 1990, 2012 and 2015. It is extremely unlikely that a quarter of voters had suddenly turned their back on Aung San Suu Kyi and the NLD for no discernable reason.
Further, the announcement, formalised in a Ministry of Foreign Affairs press statement issued a few days later, stated that the legislative, executive and judicial powers of Myanmar had been transferred to the commander-in-chief, Senior General Min Aung Hlaing, in accordance with section 418(a) of the constitution.
Under section 419 of the constitution Min Aung Hlaing then set up an 11-member State Administrative Council (SAC) to govern the country, of which eight members were from the military.