Multiple Launch Rocket System - Definition and Overview

A Multiple Launch Rocket System (MLRS) is a form of rocket artillery that can be reused.

There are several systems in used today that fit this description in use by different armies. Some are given this name explicitly.

The most famous system is the Katyusha rocket launcher used by the Soviet Union during the World War II and by its allies during the Cold War. This was a simple system with low accuracy in which the launchers were mounted on the back of a truck. Modern systems are often mounted on armoured, tracked vehicles, have a range of tens of kilometers and may be guided for accuracy.

What is considered the most advanced modern system is the U.S. Army's M270 MLRS, which is also in service with several other nations.