The euro nudged up on Wednesday ahead of a meeting between U.S. President Donald Trump and European Commission President Jean-Claude Juncker but gains were limited with traders cautious about a trade rift between the two powers.

Lack of clarity over where a brewing trade spat between the U.S. and Europe is heading kept most major currencies, including the U.S. dollar, range-bound on Wednesday as Juncker traveled to Washington for trade-focused talks with Trump.

The talks come after the U.S. imposed tariffs on European Union steel and aluminium and Trump's threats to extend those measures to EU-made cars.

EUR/USD rose to 1.1705. The dollar versus a basket of major currencies traded broadly flat at 95.55.

Forex investors were also eyeing a European Central Bank (ECB) policy meeting on Thursday for direction.

USD/JPY was 0.1 percent higher at 111.32 . GBP/USD was up, trading above 1.3150.