Sandwiched between those appearances is England and France's attempts to get Poland onside with them prior to World War II kicking off, something which Poland is completely disinterested in - In Hetalia terms, this means that Poland is more interested in pink things and ponies, which I would imagine is a slightly offensive depiction if you're actually Polish. There's also a brief segment showing America's growth while left alone by England for a while, which I think has already been pretty well-covered already in all honesty (but maybe I'm just a bitter and twisted Englishman).

Still, not being Polish means I did get a bit of a laugh out of said country's depiction, which made for a mildly entertaining episode of Hetalia: Axis Powers - Which is pretty much all you can ask of an episode of this series, truth be told.