The Katyusha is a type of rocket artillery first built and fielded by the Soviet Union in World War II. Multiple rocket launchers such as these deliver explosives to a target area more intensively than conventional artillery, but with lower accuracy and requiring a longer time to reload. They are fragile compared to artillery guns, but are cheap, easy to produce, and usable on almost any chassis. The Katyushas of World War II, the first self-propelled artillery mass-produced by the Soviet Union, were usually mounted on ordinary trucks. This mobility gave the Katyusha, and other self-propelled artillery, another advantage: being able to deliver a large blow all at once, and then move before being located and attacked with counter-battery fire.
The BM-27 Uragan is a self-propelled 220 mm multiple rocket launcher designed in the Soviet Union to deliver cluster munitions. The system began its service with the Soviet Army in the late 1970s, and was its first spin and fin stabilized heavy multiple rocket launcher.
The BM-21 "Grad" is a self-propelled 122 mm multiple rocket launcher designed in the Soviet Union. The system and the M-21OF rocket were first developed in the early 1960s, and saw their first combat use in March 1969 during the Sino-Soviet border conflict. BM stands for boyevaya mashina, and the nickname grad means "hail". The complete system with the BM-21 launch vehicle and the M-21OF rocket is designated as the M-21 field-rocket system. The complete system is more commonly known as a Grad multiple rocket launcher system.
Jelcz is a Polish brand of trucks, military vehicles, buses and trolley buses produced by Zakłady Samochodowe Jelcz/Jelczańskie Zakłady Samochodowe, with both names roughly translating as Automotive Works of [town] Jelcz.
Astros II is a self-propelled multiple rocket launcher produced in Brazil by the Avibras company. It features modular design and employs rockets with calibers ranging from 127 to 450 mm. It was developed on the basis of a Tectran VBT-2028 6×6 all-terrain vehicle for enhanced mobility based on Mercedes-Benz 2028 truck chassis while later versions use Tatra 815-7 chassis.
The Valkiri is a South African self-propelled multiple rocket launcher. It is a 127mm system with a wheeled launcher vehicle, and fire control equipment developed by Armscor. Contemporary models consist of a single launch module with five eight-cell rocket pods on a Unimog or SAMIL-100 carrier. Its mission is to engage in counter-battery strikes against hostile artillery and air defences as far as 36 km (22 mi) away. Other potential warheads include cluster and an anti-tank mine dispenser.
The RM-70 multiple rocket launcher is a Czechoslovak Army version and heavier variant of the BM-21 Grad multiple rocket launcher, providing enhanced performance over its parent area-saturation rocket artillery system that was introduced in 1971.
The BM-14, is a Soviet-made 140mm multiple launch rocket system (MLRS), normally mounted on a truck.
The BM-30 Smerch, 9K58 Smerch or 9A52-2 Smerch-M is a heavy self-propelled 300 mm multiple rocket launcher designed in the Soviet Union to fire a full load of 12 solid-fuelled projectiles. The system is intended to defeat personnel, armored, and soft targets in concentration areas, artillery batteries, command posts and ammunition depots. It was designed in the early 1980s and entered service in the Soviet Army in 1989. When first observed by the West in 1983, it received the code MRL 280mm M1983. It continues in use by Russia; a program to replace it with the 9A52-4 Tornado began in 2018.
The M-77 Oganj is a 128mm self-propelled multiple rocket launcher developed in the former Yugoslavia. NATO designation is the YMRL-32.
The LAROM is a Romanian native-made, highly mobile, multiple rocket launcher, attached to a DAC-25.360 6x6 truck, in service with the Romanian Land Forces, built in collaboration with Israel. Currently there are 54 systems in service, all operated by the 8th Mixed Artillery Brigade. Most likely it was influenced by the BM-21 Grad 122 mm multiple rocket launcher (MRL) system which entered service with the Soviet Army in 1963 also utilizing a six-by-six truck chassis fitted with a bank of 40 122mm launch tubes arranged in a rectangular shape that can be turned away from the unprotected cabin.
The Tornado is a family of related multiple rocket launchers developed by NPO Splav for the Russian Ground Forces. Variants of the system, which include the Tornado-G and Tornado-S models, have different capabilities and different battlefield roles. The Tornado is designed primarily to fire cluster munitions but also can be used to fire thermobaric warheads.
The PHL-81 is a truck-mounted self-propelled 122 mm multiple rocket launcher (SPMRL) produced by the People's Republic of China for the People's Liberation Army Ground Force.
A missile vehicle, also known as a missile carrier, missile truck, or missile launcher vehicle, is a military vehicle that is purpose-built and designed to carry missiles, either for safe transportation or for launching missiles in combat. Missile vehicles include transporter erector launchers (TEL) and multiple rocket launchers (MRL).
The RS-122 is a Georgian mobile multiple rocket launcher firing 122 mm rockets. It was developed in 2011 and put on production display in February 2012. The RS-122 is a heavily modified version of the Soviet BM-21 Grad. Its main characteristics are the armoured crew cabin, improved firing, operational range and accuracy. The vehicle was developed by the state-owned Scientific Technical Centre Delta.
The T-122 Sakarya is a Turkish multiple launch rocket system developed by ROKETSAN.
The LRSVM Morava is a modular, multi-calibre, multi-pod self-propelled multiple rocket launcher designed and developed by the Serbian Military Technical Institute. The system is designed to offer subsystem modularity, enabling integration with wheeled or tracked platforms to fire unguided rockets of various calibres to engage targets at ranges between 8 km and 40 km.
The full structure of the Polish Land Forces is:
The KN-09 (K-SS-X-9) is a North Korean 300 mm rocket artillery system of a launcher unit comprising eight rockets packaged in two four-rocket pods.
The Bateleur is a South African self-propelled multiple rocket launcher. It is a 127mm system with a wheeled launcher vehicle, disposable pods, and fire control equipment developed by Denel Land Systems. Based on a mine protected Kwêvoël 100 10 ton 6x6 carrier. Its mission is to engage in counter-battery strikes against hostile artillery and air defences as far as 36 km (22 mi) away. Other potential warheads include cluster and an anti-tank mine dispenser. The weapon can fire up to 40 127mm pre-fragmented high explosive warheads to ranges of 7.5km to 36km at sea level singly or using ripple fire, firing up to 1 rocket per second. Reload can take less than 10 minutes and in/out-of-action time is one and two minutes respectively. The system is supported by a Kwêvoël 100 ammunition truck carrying 96 rockets and crew who help with the reloading.
Poland 
