I read statements like this so often. It doesn't really demonstrate any real comprehension of the complexity of modern day conflict though. Trying to compare it all to operations in the desert against insurgencies further confirms this.If by we, you mean the UK, then you are delusional. The UK did not win the 2nd world war by itself and were it not for the US and the USSR most of Europe would still be speaking German. Also dangerous in those wars is not even close to what dangerous would mean in a full scale war with Russia today. The war would be over for both sides before it even really got off the ground and the aftermath would be cities that are unpopulable for decades with millions of corpses and millions more dying.
None of the so called wars we have had since are even remotely wars, our troops were basically fighting sandal wearing ex goat farmers and they still got their arses kicked.