President Donald J. Trump spoke today with Prime Minister Shinzo Abe of Japan. President Trump thanked Prime Minister Abe for Japan's efforts to maintain international pressure on North Korea, including recent efforts to clamp down on North Korea's attempts to circumvent sanctions in the waters surrounding the Korean Peninsula. Both leaders agreed on the need to intensify the international maximum pressure campaign to denuclearize North Korea. The two leaders discussed the pending relocation of a United States Marine base on Okinawa and discussed ways to strengthen Japan's defense capabilities including an expanded missile defense system.
Donald J. Trump, Readout of President Donald J. Trump's Call with Prime Minister Shinzo Abe of Japan Online by Gerhard Peters and John T. Woolley, The American Presidency Project https://www.presidency.ucsb.edu/node/331925