In his closed door address to the East Asia Summit, which among others was attended by Prime Minister Narendra Modi, Trump told leaders to address four security challenges - North Korea's nuclear and ballistic missile programmes; unresolved disputes in the South China Sea; terrorism and several humanitarian crises to achieve the goal of a free and open Indo-Pacific region, where strong, sovereign and independent nations control their own destinies.
"We must continue to implement UN Security Council sanctions, cut off all ties of trade and commerce, end all guest worker flows, and curtail diplomatic ties," he said.
A rogue regime that threatens the world with nuclear devastation has no place in our community of sovereign nations, including in the ASEAN regional forum, Trump said.
He said ensuring regional security will also require all nations to respect freedom of navigation and overflight, and other lawful uses of the sea.
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He provided a copy of his prepared remarks to the White Hose reporters travelling with him aboard Air Force One on his way back home from Manila at the conclusion of his nearly two-week trip to Asia, with stops in Japan, South Korea, China, Vietnam and the Philippines.
The US is closely monitoring the spread of extremism in the Southeast Asia and the growing threat from terrorist groups, including those affiliated with ISIS, he said.
He congratulated the Philippines for liberating Marawi from the grip of ISIS-affiliated terrorists earlier this year
a victory that the US was glad to support.
"All nations must deny terrorists financing, territory, and any form of ideological backing," Trump said in his speech, which could have a direct implication on Pakistan.
Trump concluded his speech by discussing the issue of Rohingya Muslims.
"In Myanmar's northern Rahkine State, at least 600,000 people have fled their homes following attacks by vigilantes and security forces," he said.
"We welcome the commitments by the government of Myanmar, and we are ready to support the implementation of the Rahkine recommendations," he said.
Trump said the US also remained deeply concerned about the use of chemical weapons by state and non-state actors.
"This year, we have tragically seen chemical weapons used by the Syrian regime and by North Korea at the Kuala Lumpur airport. Through our actions and our words, the United States has made clear that we will not tolerate the use of these horrific weapons," he said.
"The United States is committed to engaging with nations across the Indo-Pacific region in a way that affirms their sovereignty, maintains their independence, promotes self- reliance, and advances their prosperity," he said.