Original: There are four main versions of the Harrier family: Hawker Siddeley Harrier, British Aerospace Sea Harrier, Boeing\/BAE Systems AV-8B Harrier II, and BAE Systems\/Boeing Harrier II. The Hawker Siddeley Harrier is the first generation version and is also known as the AV-8A Harrier.
Simplified: This ended the Harrier production line.