South Korea convened on Monday an international summit seeking to establish a blueprint for the responsible use of artificial intelligence in the military, though any agreement is not expected to have binding powers to enforce it. More than 90 countries including the United States and China have sent government representatives to the two-day summit in Seoul, which is the second such gathering. At the first summit held in Amsterdam last year, the United States, China and other nations endorsed a modest "call to action" without legal commitment.