Is EMAR the military Equivalent to EASA?

No, the European Military Airworthiness Requirements (EMAR) are adopted requirements in each of the participating national airforces. Products manufactured or maintained will (normally) be commonly accepted in other nations, but are not “mutually accepted”. The system is more comparable to the Joint Aviation Requirements, which are requirements and must be adopted in the national regulations. The European Defence Agency published the EMAR’s and the Guidance Material.