US Vice President Kamala Harris, left, and German Chancellor Olaf Scholz, right, shake hands prior to a bilateral meeting at the Munich Security Conference in Munich, Germany, Friday, Feb. 17, 2023. The 59th Munich Security Conference (MSC) takes place from Feb. 17 to Feb. 19, 2023 at the Bayerischer Hof Hotel in Munich. Thomas Kienzle/AP hide caption
NPR's Steve Inskeep interviews U.S. President Joe Biden's national security adviser Jake Sullivan in Washington, D.C. on Jan. 5, 2023. Catie Dull/NPR hide caption
From left, Japan's Prime Minister Fumio Kishida, U.S. President Joe Biden and Germany's Chancellor Olaf Scholz speak as NATO Secretary General Jens Stoltenberg, back, European Commission President Ursula von der Leyen, and Canada's Prime Minister Justin Trudeau listen during a NATO summit on Russia's invasion of Ukraine in Brussels on March 24, 2022. Henry Nicholls/Pool/Getty Images hide caption
President Biden waves as he prepares to depart the airport after meeting with Russian President Vladimir Putin in Geneva, on June 16. Brendan Smialowski/AFP via Getty Images hide caption
President-elect Joe Biden introduces key foreign policy and national security nominees and appointments last week in Wilmington, Del. Mark Makela/Getty Images hide caption
Kim Jong Un inspects troops ahead of North Korea's 70th anniversary parade in Pyongyang in 2018. At least one foreign policy expert warns that U.S. adversaries could take advantage of the uncertainty stemming from President Trump's positive coronavirus test. API/Gamma-Rapho via Getty Images hide caption
Facebook says the fake accounts it removed focused mainly on Southeast Asia. But they also included some content about the U.S. election, which did not gain a large following. Josh Edelson/AFP via Getty Images hide caption
The U.S. Navy says a limpet mine put a hole in this Panama-flagged, Japanese-owned tanker anchored off Fujairah, United Arab Emirates. The limpet mines used to attack the tanker near the Strait of Hormuz resemble mines displayed by Iran, a Navy explosives expert said Wednesday. Iran denies being involved. Fay Abuelgasim/AP hide caption
The USS Arlington, shown in December in Morehead City, N.C., has been sent to the Middle East to bolster an aircraft carrier force sent to counter alleged threats from Iran. MC3 Chris Roys/Navy Office of Information/AFP/Getty Images hide caption
President Donald Trump hugs the American flag before his speech at the Conservative Political Action Conference. Jose Luis Magana/AP hide caption
Sen. Cory Booker of New Jersey addresses a crowd in New Hampshire, which happens to be a key early presidential primary state. Michael Swensen for The Boston Globe via Getty Images hide caption
Pope Francis spoke to the ambassadors to the Holy See on Monday. Vatican Pool/Getty Images hide caption
North Korean leader Kim Jong Un (left) has continued to go ballistic this year. China's President Xi Jinping has enshrined himself in the constitution. Fred Dufour/AP; Wong Maye-E/AP hide caption
President Trump discusses his national security strategy in a speech on Monday. Trump's strategy is built around four pillars: protecting the homeland, promoting prosperity, peace through strength, and advancing American influence. Mandel Ngan/AFP/Getty Images hide caption
During his tenure as president, Trump has signed a series of executive orders rolling back Obama-era regulations. Pool/Getty Images hide caption