This is fantasy military stuff, like the T.V. show " Deadliest Warrior". Japanese Samurai vs Zulus!
It's hard enough to figure out what really happened in actual wars, let alone trying to predict future conflicts. There are many intangibles; leadership, fighting spirit, logistics, terrain and weather. It isn't just counting up the number of tanks and artillery pieces. Political leadership has a hell of a lot to do with it also.
Take a look at the US/Viet Nam War. Everybody and I mean everybody, including the Soviets didn't think the Vietnamese stood a chance against the military might of the U.S. Surprise!
This kind of match -up belongs in the realm of video games.