Cambodia owes the US more than $400 million in war-era debt from the Lon Nol government.
The USS Mustin, based in Yokusuka, Japan, is a guided missile destroyer, carrying 300 sailors onboard.
Thailand is the world's largest rice exporter, followed by Vietnam, and Cambodia meanwhile exports about 100,000 tons per year.
Cambodian and Thailand may have broken a deadlock in a three-year border dispute.
Sam Rainsy says the influences of the US and China on Cambodia are positive in contribution.
The leaders of Burma, Cambodia, Laos and Vietnam met in Phnom Penh on Tuesday, vowing closer ties for economic growth.
Chea Vichea, a widely popular labor leader, was shot to death in February 2004.
Around 60,000 Thai tourists have visited Cambodia in the first nine months of 2010, a drop of 9 percent from the same period last year.
The 93-minute film has won 16 awards in the US and other foreign countries, including the Special Jury Prize at Sundance.
Suu Kyi was released on Saturday, imprisoned or under house arrest for most of the last 20 years.
Analysts have said such a move could draw the ire of China, which sees India as a growing regional rival.
Cambodia to send more than 200 deminers as UN peacekeepers to Lebanon.