In the early hours of September 12, 2001, as the world was coming to grips with the enormity of the events of the day before, US National Security Advisor Condoleezza Rice was busy working the phones. She discussed with the United States’ NATO allies the possibility of doing something never done before in the history of the Alliance: the invocation of Article 5 on collective defense.
On June 30, Donald J. Trump became the first US president to set foot in North Korea. Trump made history when stepped across a low concrete marker accompanied by North Korean leader Kim Jong-un and walked a few steps into the North. The two leaders agreed to have their negotiators resume an effort to reach what has so far been an elusive nuclear deal. US President Donald J. Trump, accompanied by North Korean leader Kim Jong-un, stepped into North Korea at the border village of Panmunjom on June 30. Trump is the first sitting US president to set foot in North Korea. (Reuters/Kevin Lamarque)