Operation Stack Extends To Phase Four In Response To Ongoing Calais Strikes

ASHFORD, ENGLAND - JULY 02: Trucks queue on the M20 as part of Operation Stack on July 2, 2015 in Ashford, England. Operation stack is in place for the fourth consecutive day due to industrial action in Calais with the M20 closed coastbound from junctions 8 to 11 and from 9 to 8 London-bound. (Photo by Rob Stothard/Getty Images)