European Union officials on Monday were set to circulate a list of products they plan to hit with retaliatory tariffs, a major step toward striking back at President Trump as he ignites a global trade war.

Representatives from across the bloc’s 27 member states are expected to vote on the wave of tariffs on Wednesday, and a solid coalition would be required to block them from taking effect. They are expected to go into force starting on April 15.

A preliminary version of the list included a broad variety of goods like whiskey, boats, clothing and soybeans. Officials spent several weeks vetting it, hoping to minimize pain for European companies and consumers.

While the updated list has yet to be published, details began to emerge on Monday. One senior E.U. official suggested that bourbon could be left off the final version. And the bloc’s trade commissioner said that the value of goods on the list would be smaller than the original 26 billion euro total, after it had been trimmed down during conversations with member states.

The wave of tariffs would be the E.U.’s first concrete step in retaliating against the sweeping set of trade measures Mr. Trump has announced in recent weeks. They would specifically respond to steel and aluminum tariffs that took hold in mid-March.

More is expected. European Union officials have been clear that they are also readying a response to Mr. Trump’s subsequent moves, including the 25 percent tariffs on automobiles and the 20 percent across-the-board tariff on E.U. goods that he announced last week.

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