UAS as State Aircraft

One of the legal issues that has to be considered is that UAS are usually State aircraft and as such might not come within the purview of the Chicago Convention in the 

According to Paragraph 2.2 of the Annex, The objectives of the air traffic services shall be to a) prevent collisions between aircraft b) prevent collisions between aircraft on the manoeuvring area and obstructions on that area c) expedite and maintain an orderly flow of air traffic d) provide advice and information useful for the safe and efficient conduct of flights e) notify appropriate organizations regarding aircraft in need of search and rescue aid, and assist such organizations as required. 

Resolutions adopted by the ICAO Assembly over the years show a sustained and robust evolution in global policy sharing of airspace by civil and military aviation. At its 35th Session, held in Montreal in September/October 2004, the ICAO Assembly adopted Resolution A 35-14 (Consolidated statement of continuing 

Assembly Resolutions in Force as of 8 October 2004), ICAO Doc 9848, ICAO Montreal, at II-2. 

At the 36th Session of the ICAO Assembly held in Montreal from 18 to 28 September 2007, the Assembly adopted Resolution A 36-13 (Consolidated statement of continuing ICAO policies and associated practices related specifically to air navigation) which superseded Resolution A 35-14) which noted inter alia that the airspace as well as many facilities and services should be used in common by civil aviation and military aviation and resolved that the common use by civil and military aviation of airspace and of certain facilities and services shall be arranged so as to ensure the safety, regularity and efficiency of international traffic. 

---