British propaganda later exploited the successful evacuation of Dunkirk in 1940, and particularly the role of the "Dunkirk little ships", very effectively. Many of them were private vessels such as fishing boats and pleasure cruisers, but commercial vessels such as ferries also contributed to the force, including a number from as far away as the Isle of Man and Glasgow. These smaller vessels—guided by naval craft across the Channel from the Thames Estuary and from Dover—assisted in the official evacuation. Being able to move closer into the beachfront shallows than larger craft, the "little ships" acted as shuttles to and from the larger ships, lifting troops who were queuing in the water, many waiting shoulder-deep in water for hours. The term "Dunkirk Spirit" refers to the solidarity of the British people in times of adversity.[49]