Hundreds of South Koreans protested today against an upcoming visit by Donald Trump and called for peace as the US President begins an Asian tour dominated by North Korea's nuclear programme. Trump, who arrived in Tokyo, is set to visit the South from Tuesday to Wednesday as part of his first Asian trip as head of state that also includes Vietnam, China and the Philippines. <br/><br/>He is scheduled to hold a summit with President Moon Jae-In and visit a US military base, with all eyes on his message to the North and its leader Kim Jong-Un.<br/><br/>South Korea is a key US ally and hosts 28,500 US troops but many of Trump's critics in the South see him as a warmonger whose recent war of words with Kim has heightened tensions on the flashpoint peninsula. Many protesters slammed both Trump and Kim for heightening the risk of conflict.<br/><br/>The latest standoff between Trump and Kim has raised concern among South Koreans, who have over decades grown indifferent to regular threats of attack from Pyongyang.