Economic growth will slow this year and next as the trade war hampers development in the United States and around the world, the Organization for Economic Cooperation and Development said.

Donald Trump’s combative trade policies have tipped the world economy into a downturn, with the US among the hardest hit, the OECD said.

Global economic growth is expected to take a hit, in part as a result of President Donald Trump’s tariffs, if major nations remain mired in unresolved trade disputes, the Organization for Economic Cooperation and Development said in a report released Tuesday.