Every anthem is a localization of Riding Nerdy by Weird Al.

Oooh!

• Australia could be "Hot and Deadly"
• Most of the Southern US could be "Poor and Backward-y"
• Lots of locations in South America could be "Lush and Birdy".
• The border between Russia and Ukraine could be "War Incurred-y"
• Washington DC could be "Trump's Diaper Filled with Turdies"
• An alternative for Auatralia is "Cunt isnt a swear word-y"