Most of these weapons are designed to have large areas of effect, and could not plausibly be used surgically against military areas of civilian communities. They are inflicting massive destruction of buildings and infrastructure, and killing at a minimum dozens of civilians.
Indeed, the International Committee of the Red Cross has condemned the “indiscriminate” bombardments, noting: “The use of explosive weapons with a wide impact area against military targets in populated areas may violate international humanitarian law, which prohibits indiscriminate and disproportionate attacks.”
It describes the bombardments as having killed “scores” of civilians, and damaged infrastructure including roads, electricity, gas and communications networks.
Rocket Artillery and Cluster Munitions
Stepanakert is the capital of the de facto breakaway Nagorno-Karabakh Republic, also known as Artsakh. The city of roughly 55,000 has been under artillery fire since day one of the conflict on September 27, when Azerbaijan launched a broad offensive directed at at the region.
Under nearly continuous bombardment, it has sustained tremendous damage.
On Monday, Armenia claimed a total of 21 Armenian civilians had died in the fighting.
One of the principal weapons in the bombardments appears to be Russian-built BM30 Smerch (“Tornado”) multiple-rocket launcher systems. A Smerch system consists of an eight-wheel truck mounting twelve tubes for 300-millimeter (12”) diameter rockets. Azerbaijan is believed to possess 30 or 40 BM-30 systems.
The Smerch uses several types of rocket. The 9M528 rocket has a single “unitary” 1,796-pound high explosive warhead. However, there is also a 9M55K cluster munition rocket stuffed with 72 small bomblet submunitions each weighing 3.8 pounds. The 7.6-meter-long rockets can strike targets up to 56 or 43 miles away, respectively.
Cluster munitions are many time more deadly than standard artillery shells against both vehicles and personnel targets. But they are problematic because a significant fraction of the sub-munitions tend not to exploded—and leave warzones littered with unexploded munitions that can kill civilians many years after the fighting has ended.
For that reason, over 100 countries have signed onto the Convention on Cluster Munitions banning their use, though Armenia and Azerbaijan are not amongst their number. Major military powers, including China, India, Israel, Russia and the United States have also abstained.
A recording of the bombardment of Stepanakert exhibit the characteristic flashes and popping sounds of cluster munitions exploding.
However, the Smerch may not have been the system used to deploy cluster munitions.
Instead, Amnesty International identified Israeli M095 DPICM (Dual-Purpose Improved Cluster Munition) bomblets in a residential area in Stepanakert.
It happens that after fighting in April 2016, a charity reported that in 2016 it had recovered and destroyed over 200 unexploded M095 cluster bomblets in northeastern Nagorno-Karabakh left behind by Israeli LAR-160 rockets fired by Azerbaijan.
Azerbaijan possesses around 30 LAR-160 medium-range (28 miles) rocket artillery systems, and fifty EXTRA 306-millimeter rocket systems designed to deliver longer range (93 miles) precision strikes. Both munitions are built by Israeli Military Industries, and are mounted on an IMI Lynx trucks.
Armenian sources claim two other type of systems have been used in long-range strikes on Armenian communities.
One is Belarus’s Polonez system, which mounts eight 300-millimeter artillery rockets with 120-mile range. The other is the Turkish-built T-300 Kasirga, which mounts four 302-millimeter rockets with a range of 62 to 74.5 miles on a 6×6 wheeled vehicle which uses a German diesel engine.
Belarus may have 10 Polonez and 21 T-300s, though the author has not yet seen visual evidence confirming their use.
Though shorter-range Armenian artillery had struck Azerbaijani communities closer to the fighting early in the conflict—reportedly killing a family of five in one incident—these new attacks marked a significant escalation.