>> I inherited a mess.>> Donald Trump's diplomacy is not a lesson in subtlety. 100 days in, the US President's style is complicating ties with some world leaders, but pulling others closer, not least in Europe.>> There goes that relationship.
Reuters Special Correspondent, Noah Barkin, has watched it from the continent.
>> European diplomats initially saw Trump as an impulsive leader who hadn't had a lot of experience with some of the big issues, whether it be Syria, Iran, the European Union. I think they're finding that Trump is moderating some of his views on Russia, on NATO, on trade.>> Here's one example of how Trump can change.
After some strong language on the campaign trail, a trade war with Germany seemed to loom. A first encounter in Washington with chancellor Angela Merkel proving awkward. But just weeks later though, a very public turnaround. Trump's daughter, Ivanka, invited by Merkel herself to Berlin just this week. And reports surfacing that Merkel and Britain's Prime Minister, Theresa May, coached the President on intricacies of the European Union, Russia, and other issues.
>> I said it was obsolete, it's no longer obsolete.>> Trump's also rode back on early suggestion that he might not come to the aid of NATO members he felt weren't paying their fair share. But the flexing of military muscle, not least those missile strikes in Syria, also marked a shift from promises to focus on the domestic.
>> There's a bit of a worry that when the big crisis hits that this rhetoric, the Tweets, the confrontational statements can get in the way of a solution. So, I think there's a concerted effort to sort of moderate Trump in terms of what he says about these hot points.
>> At least one leader has welcomed the new style, Turkish President Tayyip Erdoğan. He lauded that missile strike, and see's a chance to reset ties that where strained under Barack Obama. Yet, Trump is also learning that presidents have to pick their friends carefully. Erdoğan is under fire in Europe over his crackdowns on opponents.
Trump's relationship with Russian President, Vladimir Putin, that's a huge story unto itself. For the new U.S. president, diplomacy's proving a tough skill to master.