because of the politics and rhetoric of President Donald Trump. Ambassador in Estonia, James Melville, set Trump's comments on the European Union and NATO (North Atlantic Treaty Organization) on his personal Facebook page on Friday and let friends know that he is stepping down.
"The DNA of an External Action Service is programmed to support politics and has been trained from the beginning that if there ever is a point where you can not do that anymore, especially if you are in the leadership position, the honorable course is to serve under six Presidents and eleven State Secretaries "I never really thought it would reach that point for me," he wrote, reiterating what other senior diplomats had said in their public resignations over the past year and a half
But it has reached this point, he said Trump beat America's European allies, where Melville has spent most of his career.
"For the president to say that the EU was founded around the United States exploit to attack our piggy bank "or" NATO "is just as bad as NAFTA" is not only factually wrong, but proves to me that it is time is to go, "he wrote.
A US State Department spokesman confirmed to ABC News that Melville "announced his intention to retire" on Friday, as Melville in the post office said he will serve until July 29.
Melville has been in his post for three years, and he had planned to retire anyway, but because the Trump administration has not appointed anyone to replace him, he could have decided to stay on.
He confirmed his decision "takes no courage", especially because he will receive a full pension on retirement.
But Foreign Policy magazine, which first reported the news, said Melville is known as a quiet, disciplined officer, which makes this public resignation all the more shocking.
Melville has not responded to ABC News' request.