U.S. President-elect Donald Trump has named former U.S. Ambassador to Germany Richard Grenell as his Presidential Envoy for Special Missions.

Trump revealed the nomination on his social media platform Truth Social last Saturday, writing that Grenell will “work in some of the hottest spots around the World, including Venezuela and North Korea.”

The president-elect noted that Grenell had worked with North Korea during his eight years inside the UN Security Council.

Grenell, who also served as the acting director of National Intelligence during Trump’s first presidency, is considered to be a close aide to Trump and a key strategist in foreign affairs. 

Some observers believe that Trump, who met North Korean leader Kim Jong-un on three occasions, hinted intentions for U.S.-North Korea dialogue by appointing a close aide to the post, which mainly deals with the reclusive state.