 Because of the line's proximity to the East Anglian coast a number of armoured trains operated until 1943, when they were stood down as the threat of invasion had receded.In 1947 the Government once again determined to reorganise the railways compulsorily, and this time the Transport Act, 1947 moved the railway companies into national ownership, under British Railways.The LNER network became part of British Railways, and the East Suffolk network was in the Eastern Region of British Railways.