US tensions with two key trade partners amped up on Monday after President Trump doubled tariffs on steel and aluminum and the US pushed countries for deals ahead of looming deadlines. China responded to Trump's claim on Friday that it has "totally violated its agreement" with the US,

The European Union is preparing “countermeasures” against the United States if the two sides cannot reach a deal after surprise U.S. tariffs on steel rattled global markets and complicated the ongoing

The European Commission warned Monday that it could institute retaliatory trade measures in response to the Trump administration's announcement that it plans to hike tariffs on steel and aluminum imports to 50% from 25% amid ongoing trade talks.

China responded to President Trump on Monday, accusing the US of violating their trade agreement and vowing to protect its interests. “If the US insists on its own way and continues to damage China’s interests,

"The erratic tariff policy of the USA is hitting Europe's economy hard - especially Germany," Salzgitter CEO Gunnar Groebler said in a written statement. Shares in Salzgitter fell along with larger European peers Thyssenkrupp and ArcelorMittal, all down between 0.5 and 2.1%.

Skyline view of the City of London financial district from the viewpoint in Greenwich Park in London, United Kingdom. This is CNBC's live blog covering European financial markets. Good morning from London, where futures data from IG suggest stock markets will nudge higher at the open — following declines in France, Germany and Italy.

Donald Trump’s tariff announcements are giving him less and less Taco time to put them into reverse. Following an ill-evidenced accusation last Friday that China was breaking its promises on an unspecified deal,