Thailand's Parliament was dissolved Monday by a government decree, setting the stage for a May general election, which has the potential to lessen the military's influence in politics.

The dissolution, just a few days before the end of the four-year term of the House of Representatives, was initiated by Prime Minister Prayuth Chan-ocha, who is seeking a fresh mandate in the vote provisionally set for May 7.

The election will pit the heavily favored opposition Pheu Thai party, backed by billionaire populist Thaksin Shinawatra, against parties representing the conservative establishment, spearheaded by the military.

The leading Pheu Thai candidate is Thaksin's daughter, Paetongtarn Shinawatra, who is heavily favored in opinion polls.

If elected, she would be the third member of the Shinawatra family to be prime minister in the past two decades. Her father held office in 2001-2006, and Thaksin's sister Yingluck in 2011-2014. Both of them were toppled by military coups.

Prayuth is a former general who led the 2014 coup and is facing a challenge not only from Pheu Thai but also from his longtime comrade-in-arms and deputy prime minister, Prawit Wongsuwan. He was the declared candidate of a second military-backed party. Prayuth came to power again as head of a coalition government after the 2019 election.

More than 52 million of the country's population of over 66 million are eligible to vote across 400 constituencies. Four hundred seats will be determined by first-past-the-post races in each constituency. A separate party preference ballot will seat the other 100 members of the House of Representatives from national party lists.