The US will launch a trade dispute at the WTO if European countries provide launch aid for the new Airbus A350 passenger jet and A400M military plan, US Trade Representative Ron Kirk said on Thursday.
"If they do move forward with that, we will respond quickly and swiftly and file another action within the WTO," he said.
Kirk told a news conference the United States expected a result by the end of August in an existing case brought against the EU over earlier launch aid for Airbus.
The EU has filed a counter-case against US state support for Boeing aircraft.
