Salami Tactics

The term was invented by a deeply unpleasant Stalinist, one Mtys Rkosi to describe the actions of the Hungarian Communist Party. It is divide and conquer, a term coming from the Romans.

Salami Tactics
Salami tactics, also known as the salami-slice strategy, is a divide and conquer process of threats and alliances used to overcome opposition. With it, an aggressor can influence and eventually dominate a landscape, typically political, piece by piece. In this fashion, the "salami" is taken in slices, until one realizes (too late) that it's gone in its entirety. In some cases it includes the creation of several factions within the opposing political party and then dismantling that party from the inside, without causing the "sliced" sides to protest. According to the Dictionary of Modern Thought by Alan Bullock and Oliver Stallybrass, the term was coined in the late 1940s by the Stalinist Mtys Rkosi to describe the actions of the Hungarian Communist Party (szalmitaktika). Rakosi claimed he came to power by getting his opposition to slice off its right wing, then its centrists, until only those collaborating with the Communists remained in power. This strategy was also used in the majority of Eastern European countries in the second half of the 1940s.

Similar tactics had been used previously by many different political parties and groups wishing to consolidate their power in various countries. For example, Adolf Hitler's Nazi Party achieved absolute power in Germany within the early months of 1933 by squeezing out his conservative partners, after those conservative partners helped in the outlawing of Communists and Social Democrats and granting emergency powers to him.
The Wiki does not mention that salami slicing was used by communist subversives in England to take over all two and a quarter main political parties. They had the collusion of the BBC and other traitors.