 Summer 17, 40,000 of us jumped in house to open the corridor, 40 miles long, for the British tanks. Market and Garden. Market was the airborne part of the operation, consisting of more than 40,000 troops. Garden was the ground part of the operation, consisting of roughly 50,000 ground troops and armored tanks from the British 30 Corps. The only things this market was selling was air power, fire power, and a whole lot of freedom.