Dignitaries are taking time Saturday to mark Armed Forces Day.

The nationally-recognized day was created under the Truman administration, and is marked every May 20 as a way to honor all branches of the military, according to the Department of Defense. People are encouraged to pay respects to those serving in the U.S. Army, Navy, Marine Corps and Air Force.

President Trump, who is on his first trip overseas, tweeted a thank you message to the armed forces. Other dignitaries are also marking the day on social media.