OK, how does this sound as a POD, even though it is pre-WW2, so not technically within the OP's parameters- Britain and Italy come to blows over Abyssinia, and in the ensuing war a Taranto-esque raid shows the importance of carrier aviation. Britain focuses on the development of aircraft carriers, and builds up a stronger military in general. When WW2 comes, which may be at a different time as a result of the POD, Italy either stays neutral or is at worst an easily dealt with and irrelevant enemy, assuming of course that Mussolini and the fascists aren't out of power. This frees up enough ships for the Far East, leading to victory at Singapore, no Coral Sea to put Australia firmly in the US' orbit, and continued British influence in the area. No Italy probably means no North African campaign, meaning more men get sent to Singapore, and more Germans getting sent to die in Russia. The Soviets still win, but suffer more losses, and the NATO/Soviet border is perhaps a bit further east. A less bankrupt UK maintains influence throughout the Trucial States, Aden, the wider Middle East and the Far East, and is a world pioneer and leader in carrier warfare. The Conservatives win in 45, perhaps with Churchill steeping down after the war to allow Eden to take power, and although Labour win in 1950, the success of the Tories along with the ascent of a more moderate faction in the party means there is no mass nationalisation and NHS, leading to a much healthier economy. Just to top it off, De Gaulle himself dies in the war, so the UK faces a lot less hostility from Europe, perhaps leading to a British led EFTA becoming the dominant player on the Continent. I might try and work on writing this up, but it could take ages, I've never done anything like this