American access to the Panama Canal, one of several new directives outlined in what amounts to a major overhaul of US strategic priorities, according to a new memo that was sent to senior leaders and reviewed by CNN.

The U.S. acquired the rights to build and operate the canal in the early 20th century. In a treaty signed in 1979, during the administration of Democratic President Jimmy Carter, the U.S. agreed to turn over control of the canal to Panama at the close of 1999.

Panama's leader has been pushing back hard on President Trump's insistence on "reclaiming" the Panama Canal for the United States, going so far as to accuse him of lying, but that hasn't stopped Trump from moving forward with his ultimate plans for the Central American waterway.