A N N E X. 1. The disposition of our air and naval forces is such as to make an invasion of Ireland as an isolated operation so difficult as to be most unlikely to be attempted. Further, unless our forces in Great Britain were engaged simultaneously or immediately afterwards, they could at their leisure deal with the German forces largely isolated in Ireland through difficulty of maintaining sea supply routes. If attempted at all, it is likely only as a subsidiary or diversionary operation during an attempted invasion of Great Britain.