However, Hilmes acknowledged that tanks cannot be definitively grouped by generations, as each tank-producing country develops and introduces its tanks in tune with its own ideas and needs.
Hilmes erkände emellertid att stridsvagnar inte kan definieras definitivt i generationer, eftersom varje stridsvagnsproducerande land utvecklar och introducerar sina stridsvagnar i takt med sina egna idéer och behov.