A Defense Cooperation Agreement (DCA) is a formal arrangement between two or more countries to enhance their military collaboration. This agreement typically outlines the terms for joint training exercises, sharing of military resources, and logistical support. It aims to strengthen security ties and improve the readiness of the armed forces involved. DCAs can also facilitate the establishment of military bases or facilities in partner countries, allowing for better strategic positioning. Such agreements are often part of broader defense strategies and can involve nations like the United States, India, or Australia, reflecting their commitment to regional stability and security cooperation.