The president’s threats to slap duties on goods imported from the European Union are part of a pattern of directing the harshest penalties at the United States’ closest allies.

President Donald Trump on Monday agreed to a 30-day pause on his tariff threats against Mexico and Canada as America’s two largest trading partners took steps to appease his concerns about border security and drug trafficking.

Feb. 3, 1:57 p.m. EST Trump announced the tariffs against Canada will be paused for 30 days, saying the longtime U.S. ally will implement a $1.3 billion border reinforcement plan that will bolster the U.S.-Canada border with “new choppers, technology and personnel... and increased resources to stop the flow of fentanyl.”