In late August, US President Donald Trump ordered the deployment of up to 3,000 US troops to South Vietnam, after an insurgent group called the Viet Cong seized a South Vietnamese base in the disputed Spratly Islands and raised fears of a potential clash between the rival countries.
Trump’s move came after a long-running row between Beijing and Washington over the South China Sea, which has drawn Chinese and American military ships and aircraft to the contested waters.
In a televised speech on Saturday, Trump said that he had ordered a surge in US troops in the South Vietnam to ensure that it did not descend into a “new Cold War”.
The US military’s deployment comes at a time when tensions between China and the US are rising, as Beijing seeks to increase its influence in the region.
Beijing has long insisted that it has the right to use the disputed territory as it sees fit, and its neighbours have long denied it the right.
On Sunday, China also said it would not accept any interference from the US military in its sovereignty or territorial integrity.
The South Vietnam government has repeatedly accused China of being the primary cause of the instability in the area.
It has long maintained that the Chinese presence on the islands is an illegal occupation.
In June, the Chinese navy announced that it was sending a frigate to Vietnam to inspect the Spratlys.
In November, the US Navy announced that two US Navy guided missile destroyers had arrived in the country.
The deployment comes just months after Trump ordered a naval exercise in the Paracel Islands, another South Vietnamese island, which is claimed by both China and Vietnam.
The exercises, which are due to run for four months, are being jointly led by the US and South Vietnam.
China has repeatedly insisted that the exercises are only aimed at bolstering regional security, which it sees as an international concern.
On Friday, a senior Chinese foreign ministry official told the Global Times, an influential tabloid, that the US was a “strategic and strategic partner of the United States”.
“China considers the US as a major strategic and strategic power and will never abandon its interest in maintaining stability in the seas and the surrounding areas,” the Global Staff for Strategic Studies said.
US officials have dismissed the Globalist view of China as an ideological and military rival.
They have said that US troops have been deployed to South Korea and that Beijing has increased its military presence in the waters.
A spokesman for US Defence Secretary Jim Mattis told the Associated Press that he has no comment on the deployment.
But he said that the United State is taking the necessary measures to defend the US homeland and national security.