'Joshua' was a British unrealised plan proposed to the USSR for joint operations in Finland (December 1941/January 1942).

A joint Anglo-Soviet offensive into the Arctic regions of Norway and Finland was proposed to Lieutenant General Sir Archibald Nye, the vice chief of the Imperial General Staff, during his visit to Moscow in December 1941. This 'Marrow' project was abandoned in the following month, when the Soviets withdrew their support on the grounds that the Finnish intelligence service had discovered the pla’s details.