US Defense Secretary James Mattis (L) talks with South Korea's acting President Hwang Kyo-ahn (R) during their meeting at the Government Complex in Seoul on February 2, 2017. Mattis arrived in South Korea on February 2 on the first leg of a trip that also includes Japan, two key allies rattled by Donald Trump's isolationist ascent to power. / AFP / POOL / SONG Kyung-Seok (Photo credit should read SONG KYUNG-SEOK/AFP/Getty Images)
