Japan's Prime Minister Kishida strengthens ties with South Korea amid North Korean threats.

Japanese Prime Minister Fumio Kishida visited South Korean President Yoon Suk Yeol in Seoul, marking the revival of their "shuttle diplomacy" to work through several thorny issues that have complicated their ties. After years of friction, Seoul and Tokyo are trying to collaborate more closely with each other and Washington to counter the looming geopolitical threats of China's economic and military rise and North Korea's nuclear ambitions. The two leaders agreed to allow a group of South Korean experts to visit Japan and carry out an inspection ahead of the planned release of radioactive wastewater from the nuclear power plant in Fukushima that was destroyed in the 2011 earthquake, tsunami and nuclear meltdown.