Sen. Richard Lugar (R-Ind.) will join the German Marshall Fund of the United States (GMF) after the end of his term in January, the organization announced Wednesday. 

(James Brosher/The Associated Press)

In addition, GMF will establish the Richard G. Lugar Institute for Diplomacy to “honor Senator Lugar’s legacy and continued commitment to international cooperation.” The  institute will work to improve understanding between the Washington diplomatic corps and Congress.

“[Senator Lugar] is a distinguished lawmaker whose service in the United States Senate is greatly admired around the globe,” said GMF President Craig Kennedy. “His expertise on international affairs and national security will be a tremendous asset to GMF’s work.”

Lugar ends his Senate career as the most senior Republican, the longest-serving Indiana lawmaker and the ranking Republican on the Senate Foreign Relations Committee, which he twice served as chairman.