The International Longshoremen’s Association is demanding significantly higher wages and a total ban on the automation of cranes, gates and container-moving trucks that are used in the loading or unloading of freight at 36 U.S. ports. Those ports handle roughly half of the nations’ cargo from ships.

For the first time since 1977, 36 ports stretching from strategic seaboard locations as far north as Maine and as far south as Texas – all of which handle an aggregate $3 trillion in the country’s annual international trade – will be idle due to a work stoppage.