The London underworld was characterised by a large number of separate gangs, often ethnically formed, operating in similar criminal fields. Mostly, each of these gangs worked within defined geographical boundaries, but inevitably, from time to time there were incursions, where one ambitious boss wanted to flex his muscles or take advantage of a particularly tasty opportunity. The result, sporadic turf wars. It was an occupational hazard.
As an Italian, Tony held a lofty view that he was top dog in the East End, now the Kray days were over. Consequently, a number of upstarts were ready to take him down.