 Complete the following phrase:  The Luftwaffe did not remain on the defensive in 1941 and 1942. Sperrles air fleet carried out intensive and consistent air attacks on Britain and the limited German bomber force was reinforced over the winter, 194142. Concurrently, Sperrle with support from Hans-Jurgen Stumpff, continued to carry out air attacks on shipping. The Baedeker Blitz became the largest air offensive against Britain in 1942. The campaign was prompted by the 