de jure | Treinta y Tres | Willam Belli | Tres de Febrero Partido | Três Coroas | Melvin Belli | Giulio Belli | Un, dos, tres... responda otra vez | Tres (musical instrument) | Três Lagoas | Tres Cruces | Três Corações | tres | Res gestae saxonicae sive annalium libri tres | Libri Feudorum | Tres Zapotes | Três Passos | Tres de la Cruz Roja | Tres Cantos | Skull of ''C. belli'' ROM 5436, type of ''C.'' "brevirostris", on display at the Royal Ontario Museum | Plaza de las Tres Culturas | Parque Tres de Febrero | Missa in tempore belli | Los Tres Reyes | Los tres mosqueteros | Los Tres | Libri feudorum | Libri Carolini | Jure Franko | Jure Bogataj |
In his De jure Belli ac Pacis Libri Tres ("Three Books on the Law of War and Peace") of 1625, and drawing from the Bible and from the St. Augustine's just war theory, he argued that nations as well as persons ought to be governed by universal principle based on morality and divine justice.