This United States Chairman of the Joint Chiefs of Staff CJCS manual, Joint Publication JP 3-31 Joint Land Operations Change 1 November 2021, provides fundamental principles and guidance to plan, execute, and assess joint land operations. This publication is the Chairman of the Joint Chiefs of Staff (CJCS) official advice on joint land operations and provides consideration for military interaction with governmental and nongovernmental agencies, multinational forces, and other interorganizational partners.