PHNOM PENH, Cambodia — Cambodia's charismatic self-exiled opposition leader has vowed to return to Cambodia ahead of this month's general election to help challenge the 28-year rule of Prime Minister Hun Sen.
The government said Monday that Sam Rainsy is welcome home but could face arrest if he returns.
Rainsy made the announcement Sunday in a letter to the international community from France where he is living to avoid a 12-year prison sentence on charges widely seen as politically motivated.
The opposition leader is barred from running for office due to the conviction. He says his return will test whether the elections are "free and fair" — as the government claims.
The U.S. State Department has said the exclusion of Rainsy calls into question the legitimacy of Cambodia's democratic process. There are also doubts over the neutrality of the election commission and the composition of voter rolls.
"We urge the Cambodian government to allow Sam Rainsy to return without fear for his personal safety or incarceration," spokeswoman Jen Psaki said Monday. "Free and fair elections require a level playing field, including the unfettered participation of opposition parties and voters and respect for human rights."
U.S. lawmakers and human rights activists are pushing to cut the more than $70 million in annual American aid to Cambodia if the State Department judges the elections as not "credible and competitive."
In the run-up to elections, opposition lawmakers were expelled from parliament for merging parties to contest the vote. The opposition was already handicapped by Rainsy's absence.