It's tomorrow and this year as always it will go from Cambridge Services on the A14 into Cambridge and out again to Madingley Cemetery.
Madingley is the main cemetery for US Forces in the UK.
The walls are covered with the names of 5127 airmen killed in WW2 and that have no known grave. Mostly from the Battle of the North Atlantic and bombing raids over occupied Europe.
We owe these men our freedom.