I am sorry but alot of what you said was bull.
in 1944 Operation Ichigo showed amply how "elite" those army units were. basically couldn't face japanese army in defensive operations even with american airs upport. It would be reminded that during much of 43 not much big fighting was happening, Japanese busy were battering 'em selves against mountains in Western Hubei, and air attacks against the rear. majority of NRA divisions had plenty of time to re-org and refit.
it was towards end of 44 that finally under *American* operationally leadership that Sun and his 1st new army was able to push back into Burma. even then that was a hard slogging aganst a starving japanese army on the end of a severed supply line.
operationally the NRA were disasters during much of 2nd Sino-Japanese wars. yes there were well led fighting units. but over all they wasted the soldier's bravery by simply feed them into a meat grinder. the chinese civil-war was par for the course. same bad leadership producing same disasterous (for the Nationalists) results.
You missed my point entirely. I was comparing the fighting capability of Nationalists vs. the CCP. The Nationalist troops were much better trained, equipped and experienced than the PLA. Under American leadership or not, nationalists were fighting the Japanese head-on and were much better than the PLA. Nationalists were also supported by the US during the civil war. That was the point I was attempting to make. I was NOT comparing the nationalists to the Japanese/US/UK/Germany, or whatever...
Additionally, the Nationalists were pretty bad and choked at the beginning, but became effective against the Japanese pretty quickly. The bad defeats were only before 1939. Once they regrouped and changed strategy, they became quite effective. They were able to fight the Japanese to a stalemate and hold them outside Changsha for 2 years and decisively defeated the Japanese major offenses, totaling 100,000 in the first battle of Changsha, 120,000 in the second battle of Changsha, and 120,000 in the third battle of Changsha. BTW, all these occurred before the US entered the war.
As you can see from the above descriptions, the Chinese won these battles decisively. And these battles were not small skirmishes, but major battles, totally at least quarter of a million forces from both sides and up to half a million in some cases.
btw, most of the collaborator army during ww2 were of NRA stock. I don;t know how one could count their "contribution" towards japanese defeat... maybe one could rationalize that they were equally inept as fighting formations under japanese command and were basically drag on Japanese logistics.
In my opinion, China made a major contribution, which led to their permanent seat on the security council. This was in stark contrast to what happened after WWI. Although China was also among the winners, it was treated as on the losing side. After WWII, China's geopolitical importance was next to none. There was no need for any one, the Soviets, the US or the UK, to kiss up to China by inviting it to the security council. At the time, China needed those nations MUCH more than any of them needed China. China would not get into the security if they did not do anything major as you claimed. So in the eyes of the allied forces, China must have done something major. Again, there was no need to invite China into the council for some political reasons.
A quote from the Wikipedia about the battle of Changsha:
"
The 3rd Battle of Changsha can be thought of as decisive. Just a month after Pearl Harbor and U.S. entry into the war, the battle was acclaimed to be the only major Allied victory of the Asia-Pacific theater in late-1941/early-1942. It was seen as a major victory that could turn the tide of the war against Japan. It earned Generalissimo Chiang Kaishek's Government much prestige from abroad and legitimacy in stopping the Japanese. Xue Yue earned himself more prestige in China for his three victories and outstanding tactical skills."
This partially shows why China is credited for the defeat of the Japanese.
This is what they say about the aftermath of of fierce fighting in central China:
"
Despite the loss of Wuhan, the Chinese claimed heavy Japanese casualties, which hindered them to start other successful large scale offensives. During this battle, the Japanese army suffered 100,000 casualties. Although the Chinese lost 225,000 troops, it was a great improvement from the Battle of Shanghai, where the Chinese to Japanese casualty ratio was 3.6 : 1.[3] After the capture of Wuhan, the advance of the Japanese in Central China bogged down with several battles around Changsha, until the Japanese started Operation Ichi-Go in 1944. The Chinese army preserved enough strength to be able to continue opposing the considerably weakened Japanese. The Japanese's pre-war hopes for a final showdown in Wuhan, to annihilate the main forces of Chinese army and forcing them to yield were unsuccessful.[5] At the end of the battle, Japan had only one division left in the home island and was unable to reinforce the 7 divisions in Northeast China and Korea to counter the pressure of the 20 Soviet Far East divisions on the border.[17]"
Note that when it mentioned "weakened Japanese", the US had nothing to do with it as most of the fighting that caused the Japanese weakening was already finished by the time the US entered the war. The fighting in central China lasted from late 1937 to early 1942. The US did not enter the war until early 1942. So the vast majority of this "weakened Japanese" was caused by Chinese.
Wouldn't you think these brutal battles contributed to the success that the Americans had on the islands couple years later? With most of the elite troops either trapped or killed in China, Japan had few able bodies to fight another enemy...
The 16 Oct 1939 issue of Time Magazine reported that
"
the Chinese turned around and, with a fury they have never shown before, lashed the Japanese back and back.... the Chinese destroyed every rail line, every road. The Japanese blithely advanced over this torn-up area until they were in the worst military position known to man: on a thin front without communications behind. That was when the Chinese struck. The Japanese had nothing to do but run."
I don't know about you, but I would say that's efficient fighting...