Trump predicts success stopping North Korea's nuclear plans as he arrives in the South for top-secret military briefing

US President Donald Trump said Tuesday in South Korea that he's optimistic about his chances to stop North Korea from deploying a nuclear missile capable of reaching America's allies, the Daily Mail reports.

“I think we're going to have lots of good answers for you over a period of time, and ultimately it will all work out,” Trump said before a military operational briefing at Camp Humphreys, near Seoul.

'It always works out. It has to work out!'

North Koran dictator Kim Jong-un hasn't carried out a ballistic missile test since September, but there are real concerns at the Pentagon that he might conduct a test launch while Trump is nearby.

His previous tests have flown in the direction of Guam, a U.S. island territory, and directly over Japan.

Trump's appearance Tuesday afternoon in South Korea marked his arrival in the second of five nations on his expansive Asian itinerary.

Air Force One landed at the Osan Air Base shortly after noon, greeted by a 21-cannon salute and a full honor guard.

The president shook hands with South Korean Foreign Minister Kang Kyung-wha, kissed first lady Melania goodbye and boarded a military helicopter with Secretary of State Rex Tillerson.

The pair then had a short hop to Camp Humphreys, the nearby U.S. Army garrison. 

Trump saluted and greeted both American and South Korean military officers and senior enlisted personnel before boarding an armored limousine for a short ride across the tarmac to a waiting lunch.

“I had a choice of having a beautiful, very fancy lunch, and I said "No, I want to eat with the troops." And we ate with the troops,' Trump said proudly.

“And it was good eating. It was good eating. And I tell you, they've done a terrific job. Very impressive.”

South Korean President Moon Jae-in joined him at the mess-hall lunch. 'Hello everybody!' Trump boomed after he was greeted by applause. “Good food,” he said.

The presidents stayed only a short time at the lunch before the military briefing, which included Naitonal Security Advisor H.R. McMaster and retired Marine Gen. John Kelly, who is now the White House chife of staff.

A pair of South Korean generals also took part, along with the head of U.S. forces in Korea, Gen. Vincent Brooks.

The president will later sit down with Moon at the Blue House, the nation's presidential mansion, for bilateral talks in advance of a joint press conference later in the day.