At the German-American Conference, a meeting of US and German government and business leaders that held in Berlin on Tuesday, Gabriel said, "admittedly, many things are irritating us. We should not only respond to messages or tweets, we should ask what is our role in proactively shaping policy".
He's also not happy about the Trump Administration's threats to erect trade barriers and to pull out of the Paris Agreement on climate change saying "It's in the long-term interest of all of humanity that the US doesn't quit the Paris Agreement".
The Trump Administration has made it clear that it thinks Germany should spend a lot more money on its military. Tillerson says Germany can afford to spend at least 2% of its $3.5 trillion GDP on defense.
At the moment, Germany spends closer to 1%.