Prepare for something completely different...
In 1992, after Frank Tenpenny died and the riots of Los Santos ceased, the three major gangs made a deal. The Ballas would own Las Venturas, the Los Santos Vagos would have San Fierro while the Orange Grove Families would keep Los Santos. The small gangs did not know about this deal until the gangs took their respective territories. They did nothing about it.
One year later, in 1993, the Russian Mafia got tired and took Ocean Docks away from the Orange Grove Families. The Varrios Los Aztecas wanted launch an attack on them but the Orange Grove Families prevented them. The small San Fierro gangs learnt about the incident. The Da Nang Boys were the first to act by taking over some Los Santos Vagos hoods. Then, the San Fierro Rifa and the San Fierro Triads declared war on the them. It was one week after the events of Los Santos.
In Las Venturas, five weeks after what hapened in San Fierro, the Italian Mafia decided it was time to act. In a only a week, they had taken all but one of the Ballas zones. The Ballas had kept their most powerful members in one spot, the Last Dime Motel. And, they were defending it so well that the Italian Mafia lost every of their battles there.
In 1994, the police, the Army and all the other Law and Order forces had been wiped out. The gangs even had took control of territories in the country side. This is when the SAM was called in to do the dirty work...
One question remains: who called the meeting of this deal?