"clash of civilisations"

Donald Trump’s highly disturbing Warsaw speech

US President Trump kicked off his trip to Europe to attend the G20 summit with a stopover yesterday in Poland.
That was neither wrong nor inappropriate.  Since he became US President Donald Trump has been short of friends in Europe, with the public of all the big European states – Germany, Britain, France, Italy and Spain – all to a greater or lesser degree hostile to him, and with his personal relations with the G20 summit’s host – Chancellor Merkel of Germany – already extremely difficult.