New Delhi: Chief of Defence Staff Gen Anil Chauhan has released a military doctrine on joint air defence, marking a significant step towards greater integration, synergy and operational preparedness among the three services, the Headquarters Integrated Defence Staff said on Friday.It shared the update in a post on X."General Anil Chauhan #CDS released the Joint Air Defence Doctrine, marking a significant step towards greater integration, synergy and operational preparedness among the Defence Forces," the Headquarters Integrated Defence Staff said."The doctrine aims to strengthen India's multi-layered #air_defence capability in the evolving battlefield environment. @DefenceMinIndia @SethSanjayMP @SpokespersonMoD @MIB_India," it said.In August 2025, the CDS had released two landmark doctrinal publications -- Joint Doctrine for Special Forces Operations and Joint Doctrine for Airborne and Heliborne Operations -- during 'Ran Samwad', a tri-service seminar hosted at the Army War College in Mhow, Madhya Pradesh.