Almost every day since the expansion of Canada’s Trans Mountain pipeline was completed in May, a tanker laden with oil sands crude shipped through the line has passed under Vancouver’s Lions Gate Bridge en route to refineries around the Pacific.

President Donald Trump is set to impose sweeping 25% tariffs on goods coming from Canada and 10% on goods from China starting Tuesday, in what he has said is a bid to clamp down on the flow of fentanyl and migrants into the U.S.

The agreement involves significant commitments from Mexico regarding border security, which played a crucial role in this decision.