Air Force Four Xian H-6 Strategic Bombers Deployed 450 km From Taiwan admin — March 5, 2019 add comment Source: ImageSat Intl. @ImageSatIntl twitted: Four Xian H-6 strategic bombers were detected by #ISI in Xingning Airbase for the first time in few years. The bombers are deployed 450 km from Taiwan coasts.