During WW2 Kunming was clown central in the China Burma India theater, probably remained so.
Kunming became the northern and easternmost terminus of the vital war-supply line into China known as "The Hump'. The Office of Strategic Services' Service Unit Detachment 101 (predecessor to the 1st Special Forces Group) was also headquartered in Kunming and whose mission was to divert and disrupt Japanese combat operations in Burma.
https://en.wikipedia.org/wiki/Kunming
China Eastern Airlines flight 5735, a Boeing 737-800, crashed in a mountain range in Tengxian, Guangxi, China.
The aircraft departed Kunming Wujiaba International Airport at 05:15 UTC on a domestic passenger service to Guangzhou Baiyun International Airport. ADS-B flight tracking data from Flightradar24 shows the aircraft at 29,100 feet, flying along Airway 599 towards Guangzhou. ADS-B data released by Flightradar24 suggest the descent started between 06:20:43 and 06:20:59. Altitude datapoint show the descent stopped about 06:22:00 around 7400 feet and the aircraft climbed to about 8600 feet before the aircraft again entered a steep descent. The last recorded datapoint was at 06:22:35 at 3225 feet. CCTV footage and dashcam appears to show the aircraft in an extremely steep descent before it crashed in a wooded mountainous area.
The location where the descent from 29100 feet was initiated, coincides with the point where flight MU5735 began its descent (also from 29100 feet), the day before the accident.
China plane crash
China Eastern Airlines flight 5735, a Boeing 737-800, crashed in a mountain range in Tengxian, Guangxi, China.
The aircraft departed Kunming Wujiaba International Airport at 05:15 UTC on a domestic passenger service to Guangzhou Baiyun International Airport. ADS-B flight tracking data from Flightradar24 shows the aircraft at 29,100 feet, flying along Airway 599 towards Guangzhou. ADS-B data released by Flightradar24 suggest the descent started between 06:20:43 and 06:20:59. Altitude datapoint show the descent stopped about 06:22:00 around 7400 feet and the aircraft climbed to about 8600 feet before the aircraft again entered a steep descent. The last recorded datapoint was at 06:22:35 at 3225 feet. CCTV footage and dashcam appears to show the aircraft in an extremely steep descent before it crashed in a wooded mountainous area.
The location where the descent from 29100 feet was initiated, coincides with the point where flight MU5735 began its descent (also from 29100 feet), the day before the accident.
https://aviation-safety.net/database/record.php?id=20220321-0
https://www.reuters.com/world/china/china-eastern-airlines-passenger-jet-has-accident-guangxi-state-media-says-2022-03-21/