- Video report by ITV News correspondent Debi Edward
US President Donald Trump began his two-day Korean peninsula visit by walking amid weapons of war but voicing optimism for peace.
He met US military personnel at Camp Humphreys, a base about 40 miles south of Seoul, South Korea, where he dined with troops.
Speaking after their dinner, he said: "Ultimately, it'll all work out. It always works out. Has to work out."
The comment echoed the sentiment of his tweet hours earlier, when he left Japan for South Korea, the second stop of his Asian trip, which is centered on pressuring North Korean dictator Kim Jong to abandon his weapons program and cease threatening the United States or any of its regional allies.
Mr Trump has an ally in South Korean President Moon Jae-in, with the pair agreeing on the need to pressure the North with sanctions and deterrence measures. But the US President has refused to rule out military intervention, threatening the regime with "fire and fury," while insisting all options remain on the table.
Since taking office, Mr Trump has taken a hard line against Pyongyang, even threatening to “totally destroy” North Korea in a September speech at the United Nations.
Mr Jae-in, during Trump's official welcome ceremony in Seoul, said he hoped Trump's visit will be an opportunity to resolve "anxiety" in the region over North Korea.
He added: "I know that you have put this issue at the top of your security agenda. So I hope that your visit to Korea and to the Asia Pacific region will serve as an opportunity to relieve some of the anxiety that the Korean people have due to North Korea's provocations and also serve as a turning point in resolving the North Korean nuclear issue."
Mr Trump, in his own brief remarks, did not mention North Korea, though he later said Pyongyang would be "front and center" of discussions.
Mr Jae-in has called for dialogue as the best strategy for defusing the nuclear tension, especially as any military action would likely lead to mass casualties in Seoul.
Mr Trump will hold a joint press conference with the South Korean President later on Tuesday, followed by a state dinner.