A trade war is not in the interest of the European Union (EU) or the US, Spain’s prime minister said Wednesday—and regarding the possibility of the US imposing tariffs on EU goods—, CNBC reports.

“We share a strong transatlantic bond ... our economies are very interlinked and I believe a trade war is not in the interest [of either party], neither for the US, neither for the European Union,” Pedro Sanchez told CNBC.

“A trade war is a kind of a zero-sum gain,” he added. “We need to focus on how do we strengthen our transatlantic relationship, which is now more important than ever.”

Since his inauguration on Monday, US President Donald Trump has repeated his threat to impose tariffs on EU goods entering the United States.