US vs Iran
“The Fajr-3 Artillery Rocket is an Iranian multiple-launch artillery rocket, a third-generation Katyusha rocket. Fajr means 'dawn' in Persian (borrowed from Arabic).
The 5.2-metre long, 240 millimeter-calibre Fajr-3 artillery rocket has an estimated range of 45 kilometres or 25-30 miles, weighs 407 kilograms, and carries a 45-kilogram warhead. Production probably started in 1991, or as early as March 1990. Fajr-3 has the same caliber, range and warhead weight as three known North Korean systems. The 333-millimeter Fajr-5 rocket has a range of about 75–80 kilometres.” 
Fajr-5 “The Fajr-5 (Arabic, Persian: 5-ﺮﺠﻓ, meaning
"dawn-5") is an artillery rocket developed by Iran in early 2006. The system is part of the Fajr family of rockets.
In May 2006, Iran's Aerospace Industries Organisation (AIO) has developed an upgraded version of the well-established Fajr-5 333 mm (4-round) unguided surface-to- surface artillery rocket system (ARS).[ While the primary role of this artillery rocket system is the engagement of land targets, AIO says that a radar can be added to give the system the capability to track and engage naval targets. The Fajr-5 missile, which is launched from a mobile platform, reportedly has a range of 75 kilometres, or 50 miles.” 
Dr. Abbas Bakhtiar