In April, Japan and South Korea will hold their first security discussions in five years.

According to a diplomatic source on Monday, preparations are being made for the first working-level security talks between Japan and South Korea in more than five years to take place next month, ahead of a planned visit by President Yoon Suk Yeol to the United States.

As Tokyo and Seoul work to improve relations that have been frayed by a bilateral wartime labor dispute in recent years, Prime Minister Fumio Kishida and Yoon agreed at....