US White House senior Asia adviser, Matt Pottinger, will become the new deputy national security adviser.
National Security Adviser Robert O’Brien made the announcement on Sunday, just days after being appointed by President Donald Trump.
Pottinger worked for the Wall Street Journal as a journalist. After enlisting in the Marine Corps, he served in Iraq and Afghanistan.
Under Trump, Pottinger has overseen Japan-US ties and helped draw up policies on China and North Korea.
He accompanied the president when he held talks with Japan’s Prime Minister Shinzo Abe, as well as his first meeting with North Korean leader Kim Jong Un last year.
Pottinger has also repeatedly met relatives of Japanese nationals abducted to North Korea to help resolve the abduction issue.
O’Brien said Pottinger is “a team player,” and that he is going to help bring cohesion to the National Security Council. He added that Trump places great trust in Pottinger.
Earlier this month, Trump fired John Bolton as national security adviser.