reading about F1 historical stuff and stumbling upon:
The battles raged throughout the late 1970s and early 1980s, the first major confrontation being at the 1980 Spanish Grand Prix. In the buildup to the race, FISA fined the majority of the FOCA team drivers who had not appeared at the drivers' briefings at the Belgian and Monaco races and unless the fines were paid, the drivers at fault would have their racing licences revoked by the governing body. After a lengthy debate between the teams, the drivers, FOCA and FISA, the race went ahead at the insistence of King Juan Carlos without FISA's sanctioning or the support of the factory teams. The race, won by eventual 1980 World Champion Alan Jones in a Williams-Ford, was therefore run as a non-championship event.