NORAD Spots Russian , Surveillance Aircraft Within Alaskan , Air Defense Identification Zone.<br />On August 9, North American Aerospace Defense Command <br />said that Russian surveillance aircraft entered the <br />Alaskan Air Defense Identification Zone twice in 48 hours.<br />NBC reports that Alaskan NORAD detected the aircraft which , "remained in international airspace and did not <br />enter American or Canadian sovereign airspace.".<br />Air defense identification zones are self-declared <br />areas of airspace around a country or territory.<br />While these zones have no basis in <br />international law, breaching another <br />nation's zone is seen as an act of aggression.<br />NBC reports that NORAD uses <br />a multilayered defense network of satellites, <br />radar and fighter aircraft to monitor the zone. .<br />NBC reports that NORAD uses <br />a multilayered defense network of satellites, <br />radar and fighter aircraft to monitor the zone. .<br />NBC reports that NORAD uses <br />a multilayered defense network of satellites, <br />radar and fighter aircraft to monitor the zone. .<br />We remain ready to employ <br />a number of response options <br />in defense of North America <br />and Arctic sovereignty, NORAD statement, via NBC.<br />In February, Russia launched its invasion of Ukraine.<br />On August 6, hundreds of thousands of civilians <br />fled Donetsk amid the latest Russian attack.<br />According to officials in Donetsk, over <br />two-thirds of civilians have already evacuated <br />the city, but approximately 350,000 remain. .<br />According to officials in Donetsk, over <br />two-thirds of civilians have already evacuated <br />the city, but approximately 350,000 remain. .<br />The attack on Donetsk came after Russia <br />seized control of Luhansk last month