US Defence Secretary Jim Mattis said on Friday the United States remains committed to its Asia-Pacific allies, as he arrived in Singapore for the region's premier defence and security forum.
Mattis, who is making his second visit to the region since he took charge of the Pentagon on Jan. 20, will be looking to articulate a clear US policy for allies in the region and reassuring them.
Trump has actively courted Chinese support on North Korea, raising concerns among Southeast Asian allies in the lead-up to the dialogue that Washington might allow China a freer rein elsewhere in the region.
Mattis told reporters that in a speech on Saturday to the annual Shangri-La Dialogue in Singapore he would talk about the "international order" needed for a peaceful Asia, a reference to countering North Korea's nuclear and missile programme.
"At the Shangri-la dialogue I will emphasise the United States stands with our Asia-Pacific allies and partners," Mattis told reporters on the way to the regional security forum.