Reports say there are thousands of US soldiers in South Korea (photo credit: Getty Images)

The Pentagon has reassured friends of the United States of its “ironclad” security commitments, after President Donald Trump cancelled its Korean military exercises.

Trump made the announcement after meeting with North Korean leader Kim Jong-un in Singapore on Tuesday.

The drills – often called “war games” – are held in South Korea with local forces and US soldiers stationed there.

Many view the cancellation as significant concession to North Korea.

The Kim-Trump summit meeting centred on nuclear disarmament and reducing tensions concluded with a one-page agreement.

But in the press conference, Trump said the US would cancel the war games.

He also said he wanted to bring US troops home – although he did not specify a timeframe.