List of possible events involving different countries or group of countries (for now):
Albania
-Albanian mobilization in the Albanian-Italian war (either a militia division or a 1918 infantry division should pop-up for the showcase defense of Albania). Source:
https://en.wikipedia.org/wiki/Italian_invasion_of_Albania
Bulgaria
-the death of their tsar in 1943.
https://en.wikipedia.org/wiki/Boris_III_of_Bulgaria
Bulgaria + Greece, Romania,Turkey, Yugoslavia)
-The Balkan Pact allows Bulgaria to re-arm herself. A suggestion would be to give Bulgaria 50-100 manpower/some supplies/both.
https://en.wikipedia.org/wiki/Balkan_Pact
Finland
-the construction of the Salpa Line in 1940.
https://en.wikipedia.org/wiki/Salpa_Line
-Finland should get the supplies in 1944 to simulate the help from Germany at the battle of Battle of Tali-Ihantala (this can be just a flavor event, to remind people that the battle took place), it can be made into an event with impact by giving Finland the 1943/1945 infantry tech or some extra 1945 infantry divisions named after the ones that took part in the battle.
https://en.wikipedia.org/wiki/Battle_of_Tali-Ihantala
Hungary
-Hungarian heavy arms industry. The production of its own tanks, including a localized variant of the German Panther tank. This can be split into three or more events, one in which Hungary starts to produce its own tank arms starting with light tanks (all the blueprints for the light tanks up to, and including, 1938 light tanks), then a Swedish localized model in 1939 (obviously it will get blueprints for the 1939 medium tank), and then a third event in 1943 where it gets blueprints up to and including the 1943 medium tank (44M Tas) + the blueprints for the SP art. 1943 (43M Zrínyi). As far as I know, Hungary was the only Minor Axis member, in Europe, that produced its own tanks. Source: the wiki articles on Light Tank V3, Light Tank V4, 38M Toldi, 40M Turán, 40M Nimród, 43M Zrínyi, 44M Tas.
- You can also simulate a Slovak-Hungarian war (after the partitioning of Czechoslovakia and before Slovak soldiers event. Hungary should receive a small manpower boost, as well as -3% dissent, and since in your mod all of Slovakia is taken you can make the manpower boost a bit larger.
https://en.wikipedia.org/wiki/Slovak–Hungarian_War
Hungary + Italy
-1939 event concerning the buying of the blueprints for a 1939 interceptor + a 1939 interceptor "division" from Italy. Italy can receive money from this, while Hungary can decline, purchase only the blueprint or the blueprint + an interceptor flotilla (made up by the planes bought from the Italians + those made by their own industry).
https://en.wikipedia.org/wiki/MÁVAG_Héja
Hungary + Czechoslovakia, Yugoslavia, Romania
-The Bled agreement and the dissolution of the Little Entente. Similar reward as the Balkan Pact event.
https://en.wikipedia.org/wiki/Little_Entente#Disbanded +
https://en.wikipedia.org/wiki/Bled_agreement_(1938)
Italy (also assuming Italy invaded Albania)
-Albanian partisans should appear in late 1942 and late 1944 if the Soviet Union still exists or if the Bitter Peace didn't fire yet.
https://en.wikipedia.org/wiki/Italian_invasion_of_Albania#Aftermath
-Albania and Kosovo should either become cores of Italy or simply give some manpower 30-50 to simulate the fact that those territories got assimilated into the Italian government (including the military).
https://en.wikipedia.org/wiki/Albanian_Kingdom_(1939–43)
-Italy should receive cores or manpower from the Principality of Pindus.
https://en.wikipedia.org/wiki/Principality_of_the_Pindus
Romania
-Antonescu's referendums should give -1% dissent (the 2nd one was actually carried out because of riots, lol).
https://en.wikipedia.org/wiki/Romanian_policy_referendum,_March_1941 +
https://en.wikipedia.org/wiki/Romanian_policy_referendum,_November_1941 .
-the IAR program, Romania should receive the blueprints of the 1939 fighter in 1939, and then an event each year, and once a year, from 1940-1944 where it asks the AI/player to build 1 fighter flotilla/"division" for a certain cost.
https://en.wikipedia.org/wiki/IAR_80
-the Mareșal tank destroyer project. Germany gave technical assistance after the invasion of the USSR and the subsequent loss of Romanian armor. Romania began receiving tanks and other equipment from Germany, but couldn't produce its own tanks, so, as a solution, Romania began a project to allow it to build its own SP vehicle that could be build by the country's limited arms industry. The event should fire in 1942 and give it blueprints for the AT and TD line up to 1943 (assuming it would eventually expand or have other projects available, otherwise just make it a 1941 SP AT).
https://en.wikipedia.org/wiki/Mareșal_tank_destroyer
-1942 event where Germany upgrades Ploiesti's air defense (supposedly 2nd only after Berlin).
https://en.wikipedia.org/wiki/Operation_Tidal_Wave#German_air_defenses