Chris, a few points...
First, on WW1, sorry I can't give you an exact citation, I'd have to go look it up in one of my books, but a British Admiral was quoted as telling a US naval officer that if the U-Boats weren't checked then Britain could very well lose the war. The American officer had commented that, looking at the losses incurred by U-Boats, that it appeared Britain was losing. And 887,000 tons of shipping lost in one month is significant, considering that the necessary cushion for British merchant shipping was, IIRC, 15 million tons, and they only started the war out with around 20 million.
A Panama Canal campaign still wouldn't have been feasible without holding Hawaii first, for logistical reasons - I mean Panama is what, 7000 miles from the Home Islands?
As to Japanese tanks being superior, you might indeed be correct, my understanding though was that at least early on in the war (1942 as opposed to 1944 when Saipan took place) Japanese tanks were terrible, they even would have had trouble with US Lees and Soviet T-26s.
Besides, a Panama campaign would have looked probably similar to a Hawaii campaign - except of course Panama is closer to the US than Hawaii is, on the same landmass, even, and the same problems to Japanese air superiority would have existed in Panama too.
Remember, Chris, that the US could make war plans to invade Mars, but that doesn't mean it can or will ever happen.
Finally, I find it very improbable that the IJA would have opted for the US over China - and if they ever REALLY wanted Australia, at least early on, they could have taken it if they had just concentrated all six heavy carriers and significant Army assets, but the Army was too tied up in China, with over a million men in that theater. It would have been a big blow to Japanese pride to withdraw from China, and it was NOT likely - especially as the war went on, that was the only place they were making big advances.
First, on WW1, sorry I can't give you an exact citation, I'd have to go look it up in one of my books, but a British Admiral was quoted as telling a US naval officer that if the U-Boats weren't checked then Britain could very well lose the war. The American officer had commented that, looking at the losses incurred by U-Boats, that it appeared Britain was losing. And 887,000 tons of shipping lost in one month is significant, considering that the necessary cushion for British merchant shipping was, IIRC, 15 million tons, and they only started the war out with around 20 million.
A Panama Canal campaign still wouldn't have been feasible without holding Hawaii first, for logistical reasons - I mean Panama is what, 7000 miles from the Home Islands?
As to Japanese tanks being superior, you might indeed be correct, my understanding though was that at least early on in the war (1942 as opposed to 1944 when Saipan took place) Japanese tanks were terrible, they even would have had trouble with US Lees and Soviet T-26s.
Besides, a Panama campaign would have looked probably similar to a Hawaii campaign - except of course Panama is closer to the US than Hawaii is, on the same landmass, even, and the same problems to Japanese air superiority would have existed in Panama too.
Remember, Chris, that the US could make war plans to invade Mars, but that doesn't mean it can or will ever happen.
Finally, I find it very improbable that the IJA would have opted for the US over China - and if they ever REALLY wanted Australia, at least early on, they could have taken it if they had just concentrated all six heavy carriers and significant Army assets, but the Army was too tied up in China, with over a million men in that theater. It would have been a big blow to Japanese pride to withdraw from China, and it was NOT likely - especially as the war went on, that was the only place they were making big advances.
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