Complex sentence: He has been criticized for his religious approach to leadership and for what critics argue to have been an unacceptable delay in the creation of bomb shelters; as well as in implementing efficient food-rationing and creating an effective civil-defense system.
Split into simpler sentences: He has been criticized for his religious approach to leadership and for his wartime failure to promptly order the creation of bomb shelters. In addition, he was criticized for his food-rationing system and for what critics argue was an uneffective civil-defense system.