WASHINGTON and European Union (EU) — the world鈥檚 two largest economies — were on an accelerating collision course on Wednesday as Donald J. Trump鈥檚 administration vowed to unveil new tariffs on steel and aluminum within days, and Brussels readied to retaliate.

As the White House forged ahead with Mr. Trump鈥檚 nationalist economic agenda — triggering howls of protest from fellow Republicans, a walkout by a top presidential aide and a market sell-off — European leaders warned the US president against starting a trade war.

The sparring came just six weeks after Mr. Trump鈥檚 conciliatory words at the World Economic Forum in Davos, where he pledged that his 鈥淎merica First鈥 vision did not mean 鈥淎merica alone.鈥

White House press secretary Sarah Sanders sought to calm nerves, saying a detailed decision would come by the end of the week on the tariffs — whose sudden announcement by Mr. Trump last week opened a chasm among his staff, with economic advisor Gary Cohn quitting Tuesday following a pitched internal battle.

With Mr. Cohn鈥檚 exit reverberating through global markets fearful the world could backslide on trade, Trump Cabinet members appeared on television to make the president鈥檚 case, with Commerce Secretary Wilbur Ross insisting the US was not 鈥渓ooking for a trade war.鈥

鈥淲e鈥檙e going to have sensible relations with our allies,鈥 Mr. Ross told CNBC, claiming Mr. Trump鈥檚 policy was well 鈥渢hought through.鈥

But in Brussels, the bloc wasted no time in outlining planned retaliatory measures on targeted American exports — from steel, industrial and agricultural items to flagship products such as jeans and motorbikes, peanut butter and bourbon — to be rolled out if the US makes good on its threat.

鈥淭rade wars are bad and easy to lose,鈥 EU President Donald Tusk told a news conference Wednesday, directly rebuffing Mr. Trump鈥檚 assertion last week they were 鈥済ood and easy to win.鈥

Warning of 鈥渁 serious trade dispute鈥 between Washington and the rest of the world, Mr. Tusk said leaders of the bloc would hold emergency talks on the issue on March 22-23.

EU Trade Commissioner Cecilia Malmstroem doubled down, saying a full-on transatlantic trade war was 鈥渘ot in anybody鈥檚 interests.鈥

鈥淎 trade war has no winners,鈥 Sweden鈥檚 Ms. Malmstroem told reporters after the European Commission discussed the tariffs.

鈥淲e should be very careful with that word… there are only losers in that, and that鈥檚 why we will respond in a proportionate and balanced way.鈥

鈥楾HOUSANDS鈥 OF JOBS AT RISK
The EU is holding fire on its reprisals for now — as Mr. Trump has yet to sign into effect his aggressive plan, having floated 25% tariffs on steel and 10% on aluminum to correct what he calls unfair competition for US industry.

But a hit list of targeted US exports has been drawn up.

European Commission chief Jean-Claude Juncker had threatened to hit big-name US brands such as Harley Davidson motorbikes and Levi鈥檚 jeans with import duties, prompting Mr. Trump to fire back a threat to tax cars from the EU.

Despite Mr. Juncker鈥檚 headline-grabbing threat to iconic brands, the EU鈥檚 list, written in the dry language of customs regulations, does not mention specific businesses.

Obtained by AFP, the list includes 鈥渕en鈥檚 or boys鈥 trousers and breeches of cotton denim鈥 and 鈥渕otorcycles including mopeds鈥 with engines of 500 cc capacity and above — which includes Harley Davidson models.

Sweetcorn, cranberry juice and peanut butter are all featured along with cigarettes, cigars and playing cards.

Ms. Malmstroem said the EU was still trying to persuade Washington not to go ahead with the tariffs, which she said would threaten 鈥渢housands of European jobs.鈥

The EU is also looking at 鈥渟afeguard鈥 measures to protect its own industry — restricting the bloc鈥檚 imports of steel and aluminum to stop foreign supplies flooding the European market, which is allowed under World Trade Organization rules.

Mr. Juncker, who on Wednesday met Lakshmi Mittal, the boss of the world鈥檚 top steelmaker ArcelorMittal, said last week the EU would 鈥渞eact firmly鈥 to protect European industry.

Europe exports around five billion euros鈥 ($4 billion) worth of steel and a billion euros鈥 worth of aluminum to the US each year, and the commission estimates Mr. Trump鈥檚 tariffs could cost some 2.8 billion euros. — AFP