The Warrior-class strike craft (formerly designated Minister class) in service with the South African Navy are modified Sa'ar 4 (Reshef-class) fast attack craft.

[4] The imposition of the international embargo on the sale of arms to South Africa on 4 November 1977 forced the project to be carried out under a cloak of security.

[4] The South African variants were fitted with Gabriel missiles, known in South Africa as 'Scorpion' missiles, and had two OTO Melara 76 mm guns instead of a single one with a Phalanx CIWS.

[8] All Sa'ar 4s in service with the Chilean Navy are armed with two OTO Melara 76 mm guns, eight Gabriel missile launchers and two Oerlikon 20 mm cannon with the exception of Angamos which was modernized in 2013 replacing four of the Gabriel missile launchers with four Exocet MM40 launchers.

In 2000, two of the Israeli boats were sold to the Sri Lankan Navy, forming the Nandimithra class.