President Trump Donald John TrumpTrump says he doesn't think he could've done more to stop virus spread Conservative activist Lauren Witzke wins GOP Senate primary in Delaware Trump defends claim coronavirus will disappear, citing 'herd mentality' MORE wrote a letter to Vietnamese President Tran Dai Quang last month promoting increased cooperation between their two countries, according to a statement posted on the Vietnamese government's website Friday.

"In his letter dated on February 23, President Donald Trump affirmed his wish to boost cooperation with Vietnam and work with the regional countries to ensure peace and prosperity in Asia-Pacific on the basis of international law," the statement says.

News of the letter came as U.S. Ambassador to Vietnam Ted Osius, who also served under the Obama administration, met with Quang on Friday.

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Relations between the U.S. and Vietnam strengthened under former President Barack Obama Barack Hussein ObamaBiden to hold call with Senate Democrats on Thursday: report Romney undecided on authorizing subpoenas for GOP Obama-era probes Billboards in four states and DC demand ICE 'free the families' MORE in response to a dispute with China in the South China Sea. Vietnam would have also been a key beneficiary of Obama's Trans-Pacific Partnership trade agreement.

Trump withdrew the United States' intent to ratify the treaty almost immediately after taking office in January. The president has frequently ripped multilateral trade agreements, arguing instead for a series of bilateral deals.

Quang was reportedly receptive to Trump's call to bolster bilateral relations between the U.S. and Vietnam.

"State President Quang highly valued President Donald Trump’s position as it would help boost the bilateral ties and contribute to peace, stability, cooperation and development in the region," the statement reads.