Another application of mathematics by Richardson was in his study of the causes of war and he published the results of his analysis in a number of major books: Generalized Foreign Politics (1939), Arms and Insecurity (1949), and Statistics of Deadly Quarrels (1950).
Ng isa pang application ng matematika sa pamamagitan ng Richardson ay sa kanyang pag-aaral ng mga sanhi ng digmaan at siya nai-publish ang mga resulta ng kanyang pagtatasa sa isang malaking bilang ng mga libro: Politics pangkalahatan mga dayuhan (1939), Arms at kawalan (1949), at Estadistika ng mahigpit Quarrels (1950).