US President Donald Trump announced Thursday that his summit with North Korean leader Kim Jong Un will occur June 12 in Singapore, a high-stakes step in his bid to curb the rogue nation’s nuclear weapons program. Trump welcomed three Americans who had been held prisoner in North Korea back home on Thursday, thanking its leader Kim Jong Un for their release and sounding upbeat about a planned U.S.-North Korea summit in Singapore. The city state has a North Korean embassy, and until 2016, that country’s citizens could enter without a visa. Singapore boasts a strong security relationship with the U.S.; Prime Minister Lee Hsien Loong was among the first Southeast Asian leaders to visit President Trump last fall and it has longstanding ties with China.