The US government said it would raise tariffs on certain European Union products, including aircraft components and wines from France and Germany.
This comes as the latest twist in a 16-year battle over aircraft subsidies between Washington and Brussels.
In a statement, the Office of the US Trade Representative (USTR) said it was adding tariffs on aircraft manufacturing parts and certain non-sparkling wines as well as cognacs and other brandies from France and Germany.
The USTR did not say when the tariffs would take effect but noted that additional details would be "forthcoming."
The US action comes as US and European negotiators continue talks about ending the long-running dispute over government aid to Europe's Airbus, which is politically backed by Britain, France, Germany and Spain, and US aid to planemaker Boeing.
The USTR said the EU had unfairly calculated tariffs against the US allowed by a September World Trade Organization ruling in the ongoing dispute.
"The EU needs to take some measure to compensate for this unfairness," it stated.
Ben Aneff, president of the US Wine Trade Alliance, said the action would cause further hardship for US companies already hit hard by previous tariffs, and urged President-elect Joe Biden to quickly reverse course.
"This action is a body blow for American companies. US restaurants and small businesses are already struggling to survive; this decision will only destroy more jobs and shutter more doors," said Aneff, managing partner of Tribeca Wine Merchants in New York City.
Emily Haber, Germany's ambassador to the United States, this month urged quick action to resolve the dispute, calling it a distraction from bigger issues that require joint action such as climate change and the Covid-19 pandemic.