Was there a Kingdom of Britain before Caesar?

[Gaius Sempronius Gracchus]

The fact still remains that Rome's greatest strength was being able to demolish their enemy to the pulp of extinction, while at the same time taking over their lands through such methods as colonization - a rather new innovation for that time period. They not only defeated their enemies, they conquered them.

No British tribe was ever able to conquer anything; it was Rome that first conquered there.

Hmmmm... Don't you think that there is a reason that Rome would quite like a disjointed, factional Gaul, rather than having to face a united Gaul? Aren't there reasons that Rome invested so much effort in allied states in Asia Minor? Rome didn't just possess some all defeating, invincible army of demi-gods..., they worked hard at ensuring that their enemies were ...... diluted. They could only "demolish their enemy to the pulp of extinction" because those enemies were weakened by political infighting, by divisions.

As to what was going on in Britain..... thank you for your surety, I am not so convinced. There were clearly major changes going on within Britain prior to Caesar's invasion (as attested by the archaeological evidence), and this involved new power structures, possibly introduced at the intervention of the Belgae tribes who were encroaching into Britain at this time. The Trinovantes were 'conquered' by the Catuvallauni, which is what lead to Mandubracius approaching Caesar for aid in re-establishing his rule....taken from them, physically, by the Cassivellaunus...