Donald Trump arrived in Osaka for the G20 summit on Thursday after a 24-hour period that saw the US president attack several allies, including Japan and India, whose leaders he will meet at the two-day summit.

In an interview with Fox Business before leaving Washington, Mr Trump slammed the EU for bringing a raft of antitrust cases against US technology companies and called into question the US-Japan security alliance.

As Air Force One flew over the Pacific en route to Osaka, he focused his ire on India. “I look forward to speaking with Prime Minister Modi about the fact that India, for years having put very high Tariffs against the United States, just recently increased the Tariffs even further,” Mr Trump said in a tweet. “This is unacceptable. and the Tariffs must be withdrawn!”