HUGS THROUGHOUT HISTORICAL HETALIA
Falling into the historical hetalia fandom and coming out changed irrecoverably is a canon event
Drawing explanations ⬇️ Rastatt: Not much to say, I think it's pretty clear South Italy and Spain have a close relationship in canon.
Ghent: hc that it's difficult for Canada and America to HATE each other. Yes, they get irritated and angry, but due to being isolated together, growing up side by side, and experiencing conflicts all the time because of forced proximity, they decided to separate their personal and professional lives. Thus, it was hard for Alfred and Matthew to fight each other during the War of 1812 (they still did, because at the end of the day their nations will always be the priority). When the war ended, they couldn't be more relieved.
Ausgleich: Austria and Hungary married in canon, so...
Customs: idk about Leich and Swiss's backstory in canon, but I like their characters and did light research into their history. Apparently, this treaty was very important in developing their economic and diplomatic ties.
V-E Day: hc that while England and France used to hate one another (they always fought throughout history), but by 1900s, they were so used to the other's presence (they'd never admit it then) that they couldn't imagine life without them. Since they were SO close to being defeated during WW2, at the end I imagine all the "pretending to despise you" shit flew out the window, and they were just so glad the other was alive and kicking.
Mauerfall: Also very canon. In the manga, Ludwig was a bit ashamed of himself for being put together, while Gilbert was more poor during their reunion. Also, Prussia got punished for WW2 heavily despite Germany playing a larger role in the conflict, so Ludwig prob feels guilty about that. And ofc, hc that Ludwig was worried at how USSR/Russia treated Gil, so he's currently breaking down :)
