Trade will also be a key focus for Mr Trump, who wants fresh terms for the US-South Korea free trade agreement. He will meet President Moon Jae-in, US troops, and local politicians. Mr Trump is currently on a five-nation tour of Asia, his first as president. Though the US President will only spend about 24 hours in South Korea, it is perhaps the most symbolic stop in his Asian tour, says the BBC’s Robin Brant in Seoul. The trip is designed to bolster the military alliance that has long protected South Korea, and strength in unity is the message they want to send to North Korean leader Kim Jong-un just across the border, says our correspondent. But the two leaders also have their differences. Mr Trump has previously accused Mr Moon’s government of trying to appease the North. He has also previously criticised the free trade agreement between the US and South Korea, and has made clear he wants to re-negotiate its terms. In Seoul, many are hoping that Mr Trump will not repeat his strong rhetoric against North Korea, or make any off-the-cuff remarks about “fire and fury”, which many here regard as unnecessary and incendiary, says our correspondent. Protests against Mr Trump, as well as counter-rallies welcoming him, have been held in Seoul and elsewhere. Mr Trump is visiting Asia in his first tour as US President. He will be going to China, Vietnam and the Philippines in the coming week.