Co-Existence
Definition
Co-existence in the context of joint military function refers to the ability of different military forces, entities, or components to operate together in the same area or environment while respecting each other's presence, capabilities, and responsibilities, ultimately contributing to a unified and effective mission accomplishment.
Source
U.S. Department of Defense's Joint Publication 3-0, Joint Operations
Key words
Interoperability
Mutual respect
Collaborative engagement