The MEKO family of warships was developed by the German company Blohm + Voss. MEKO is a registered trademark. The portmanteau stands for "Mehrzweck-Kombination" (English: multi-purpose-combination). It is a concept in modern naval shipbuilding based on modularity of armament, electronics and other equipment, aiming at ease of maintenance and cost reduction. MEKO ships include families of frigates, corvettes and ocean-going patrol boats. Construction of MEKO ships began in the late seventies with the design and later building of Nigeria's MEKO 360 H1. Vessels of similar classes use different weapons systems. For example, for the main gun, some MEKO 200s use the Mk 45 Mod 2 gun, others use the French 100 mm naval gun or Otobreda 76 mm gun.