Well...
UK, Commonwealth and Empire - Certainly not on the frontline, but as per OTL extensive use of women in (far) rear area support roles (WRNS, WAAF, etc.) including some involvement in AA defence, and while not strictly military SOE and similar had quite a few female agents.
France and...
With the slower German advance (and Ju-87s being rather busy) there's a fair chance that the old pre-dreads Kilkis and Lemnos have been evacuated to Alexandria. Now, they're both ancient pre-dreads and Lemnos seems to have been mostly disarmed, but it'd likely mean there's more of a core (and a...
The Indonesian Ahmad Yani-class KRI Oswald Siahaan probably represents about the maximum you could do while staying on a Type 12 base. I'd be tempted to say go that path but whack a set of Mk48/Mk 56 VLS with Sea Sparrow or ESSMin place of the four VLS cells used for the SS-N-26 AShMs... Edit...
Norway and Belgium evacuated much more of their armies ITTL than IOTL (and the Belgian king got out instead of turning himself in to the Germans...)... This'll likely imply significant changes later.
Eh, Dunkirk had train ferry facilities as well... Not used in OTL.
Looks like the number of rail ferries available was only about 5 or 6 and most got nabbed by the RN for use as minelayers before the fall of France IOTL, so probably aren't available to act as jerry rigged ro-ro ships...
Given IOTL the British did everything they could to stop any of the Littorios being sent to the USSR (including an indefinite loan of an R class BB) and the USSR was rather further up the totem poll on the reparations front than Brazil... Highly unlikely to happen given roughly OTL actions...
Given the electronics available during WW2 I'm not sure frequency hopping is that practical. And a system that uses a piano roll (and associated mechanical gubbins) to control the frequency hopping is also not a very practical solution. For instance, you're using the system for radio comms...
The Dutch involuntarily "evacuate" ex-Kaiser Wilhelm to the UK. Not catching the involuntarily part Hitler cracks down on the old German royal houses in a rather bloody fashion.
Somehow Rupprecht, Crown Prince of Bavaria manages to get out of Italy and escape via Greece to Britain before...
350 miles an hour is fast by WW2 fighter standard. A 1930s Wing in Ground Effect aircraft built as a transport will certainly be slower both due to the level of drag inherent in a relatively boxy transport plane and due to the much lower power available to throw at the problem than in the...
Once (almost) all-weather capable aircraft; reliable stand-off guided weapons and relatively light (aka you don't need a heavy bomber) nukes become available (thus a flight of fighter/strike aircraft have a good prospect of deep sixing a BB) plus nuclear subs become mature (all mid-1950s to...
If there's a reason for the Entente to let the Germans keep a few modern-ish capital ships (maybe the Soviets manage a cleaner takeover of Russia and are in a position to operate the four Gangut class BBs and restart work on the Borodino class BCs in late 1918?) I'd expect the odds are they'd...
Like OTL but with the hanging upside down and shooting reversed?
THe only time he actually manages to make a train run on time is when he's stuck on the tracks?