the org's work also extended into the south atlantic and into the pacific ocean theater of world war ii, where the us navy was carrying out a submarine offensive against japan's supply lines and where defenses against kamikaze attacks was high on the agenda. at the end of the war some of the org members stayed on to document the lessons of the group's work. morse and kimball wrote "methods of operations research", which was initially a classified report, but which was later released for general publication and published by mit press in 1951, and this book received a lot of attention. kimball received the presidential citation of merit for his work during world war ii, and in 1954 he was elected to the national academy of sciences.