Home News 25. November 2015 ESSOR Interoperability Demonstration to NATO Following the successful completion of the first phase of the ESSOR Programme, the ESSOR community (both governments and industries) decided to demonstrate their outstanding results to the NATO nations 23. June 2015 Final interoperability event in the ESSOR Programme: Far more than a technical milestone Following the first and the second successful Interoperability Functional Qualification Reviews (FQRs), a final interoperability event was conducted 23 - 25 June 2015 in Gdynia (Poland). 26. May 2015 New interoperability qualification testing in the ESSOR Programme Following the first successful Interoperability Functional Qualification Review(FQR) of the ESSOR Programme, a new Interoperability FQR was conducted on 26, 27 and 28 May 2015 in Gdynia (Poland).