Was wondering out of all the elite units I made which one would you join?

Japanese Mountaineers - made them in 1938 with AT and artillery. They served 2 years in the American civil war where they defended Seattle. They then fought with the republic of Russia against the Scandinavian council they were the first ones to enter and take Stockholm.

Australia Mechanized Marines - produced my first one in 1941 and they fought for 4 months in New Zealand and then fought for 4 more years in China.

Italian Paratroopers - fought and took over Switzerland with 2 divisions in less than a month. Fought for 3 years in turkey doing close to 9 paradrop operations. Paradropped into France and took Paris in a week.