The nation is holding an election in a vote broadly rejected as a sham, with key opposition groups dissolved, numerous figures imprisoned and as much as half of the country unlikely to vote because of an ongoing internal conflict.
The military government is conducting a phased ballot nearly five years after it seized power in a coup, which sparked widespread opposition and spiralled into a devastating conflict.
Observers say the military regime, with backing from Beijing, is attempting to validate and consolidate its power as it seeks a way out of the devastating deadlock.
"There are no conditions for the exercise of the rights of free speech, assembly or peaceful protest," UN High Commissioner for Human Rights Volker Türk said.
More than 200 people have been charged for disrupting or criticising the polls under a new law which imposes severe punishments, including the death penalty.
Director Mike Tee, performer Kyaw Win Htut and entertainer Ohn Daing were among the prominent figures found guilty under the law, which was enacted in July. They were each handed a prison sentence of seven years after criticising a film promoting the elections.
Civilians are "being coerced from all sides," Mr Türk said in a statement, adding that resistance forces have issued their own threats urging people to boycott the polls.
The army has been engaged on several fronts, against both armed resistance groups who reject the coup, as well as ethnic armies which have their own militias. It ceded territory of vast areas of the country in a string of defeats, but clawed back territory this year after relentless airstrikes enabled by support from Beijing and Moscow.
All of this and the fact that significant regions of the country are still under rebel administration presents a huge operational hurdle for holding an election.
The ballot is set to take place in three rounds over the coming weeks in 274 of the country's three hundred and thirty townships, with the remainder deemed not secure enough. Outcomes are expected by late January.
There is not expected to be any voting in as much as one half of the country. Even in the townships that are voting, not all constituencies will hold elections, making it difficult to forecast a likely turnout.
Six parties, including the military-backed Union Solidarity and Development Party, are running nominees nationwide, while another 51 parties and non-aligned contenders will contest only at the local levels.
Some 40 parties, including Aung San Suu Kyi's National League of Democracy, which scored landslide victories in 2015 and 2020, have been dissolved. Suu Kyi and a number of the party's senior figures have been imprisoned under charges broadly viewed as politically motivated, while others are in hiding abroad.
"Through dividing the vote into stages, the junta can change their approach if the results in the initial round do not go their way," noted Htin Kyaw Aye, a representative of the watchdog group Spring Sprouts.
Western governments, including the United Kingdom and the European Parliament, have rejected the vote as a sham, while neighbouring group Asean has called for negotiations to precede any election.
The Myanmar regime has dismissed criticism of the polls, insisting that it aims to "restore a multi-party democratic system".
"The election is being held for our nation. It is being held for the citizens of Myanmar. It is not being held for the international community," a junta spokesman stated at a briefing last week.
Military leader Min Aung Hlaing cautioned earlier this week that those who refuse to vote are turning their back on "progress toward democracy".