[1] After the Sino-Soviet split, the Soviet Union withdrew its technical staff and support to China's arms industry.
The captured tank was examined and some of its components such as the Soviet Luna IR (infrared) searchlight system, were copied and integrated into the Type 69 prototype.
The fume extractor on the 100mm gun was moved back slightly and there was a large IR light attached to the turret.
There was a laser rangefinder on the gun mantlet and a smaller IR light on the commander's hatch, making it the first Chinese tank capable of fighting in the dark.
As it was fundamentally an improved variant of the Type 59, however, the Chinese military decided to develop another second-generation main battle tank based on new technologies.
[6] The relevant departments in tank development did not have sufficient experience or knowledge, and the overly ambitious design requirements meant that a large amount of time was wasted.
By the time the Type 69 went into production, other countries had already developed much more advanced tanks such as the American M60 MBTs or what would eventually become the Russian T-72.
The new version received the designation Type 79, which represented the conclusion of China's first-generation tank development.
Today only a couple of hundred Type 69/Type 79s remain in PLA inventory, mostly deployed with training or reserve units.
The simplicity, robustness and low cost of the tanks made them attractive on the export market, and China sold hundreds to both sides during the Iran–Iraq War.
One possible explanation is that Saddam ordered his Republican Guard units to preserve their strength, while sending the rest of the army, equipped with inferior Type 69 tanks, to the frontline.
According to battle reports from the 2003 invasion of Iraq, Type 69-QMs were used by the Iraqi Army units defending Nasiriyah in March 2003, most of them being employed as artillery pillboxes.
[9] There is also a first hand account of about four Type 69s hidden behind some buildings pounding the Marines' Charlie Company with indirect fire and likely disabling several AAVs.