Home/American Shipper/UPS Teamsters ready to strike as contract end looms American ShipperShipping UPS Teamsters ready to strike as contract end looms FreightWaves Staff · Thursday, June 07, 2018 Facebook Twitter/X LinkedInThe labor union is headed for a showdown with the parcel giant that could lead to the largest U.S. strike since 1997 if a deal is not reached by the time the current contract expires Aug. 1. N/A