Some interesting facets as well:
The northernmost Italians were on lake Ladoga, where there was an italian MAS (MTB) flotilla.
Chinese He 111s flew combat missions against the japanese and were shot down by japanese fighters, while japanese apparenlty used a small number of two seat Seversky P-35s against the chinese as well as Fiat Br.20s against the Russians.
Nationalist China had a german-run airline called Eurasia using Ju 52s and G 24s whose pilots were german and were still flying regular service to Hong Kong and other english holdings in 1941. German Eurasia Pilots and US CAAC pilots had to work together to escape from Hong Kong with their airliners.
Also while Italy attacked Greece 1940, Germany only was at war with Greece from May 1941, so in Athens german airliners and military transports often flew to the same airfields from which british Blenheims flew bombing missions.
In east Africa, the South African air Force used Ju 86s and Ju 52s against the Axis, while in Iraq the pro axis junta used Gladiators and Nothrop 8As (export version of the SBD) against the allies.
In 1939 the Hela peninsula capitulated to the germans. Polish commander at the Scene was Admiral von Unruh (Jozef Unrug in polish), while german commander was General Kwiatkowski..
Unruh had been a U-Boat captain in WW1 and was at one time watch officer on a Boat commanded by Karl Dönitz....
Hungary, a landlocked country was ruled by an Admiral