not true. the US provided considerable material and personnel aid well before pearl harbor. Relation with germany withered to effectively nothing well before pearl harbor as Nazi Germany relented under japanese pressure to break off relationship with KMT/ROC. KMT/soviet relationship also withered to effectively nothing between late 1939, at the conclusion of Nomenhan incident in Manchuria and roughly coinciding Stalin’s attention turning west with the beginning of the war in Europe, and June 1941 when Germany invaded the Soviet Union.
For 2 years between the end of 1939 and Dec 1941, the US was the only major power providing significant material and personnel assistance to ROC/KMT
This is getting a bit off-topic and should probably go in the WW2 thread. But I disagree with the commonly peddled myth that the US was always a major supplier/helper to the KMT during the Second Sino-Japanese War. Germany's motivation in the KMT was trade for raw resources. Japan promised them compensation for breaking off the relationship with the KMT (the compensation never materialized in the end). The USSR, UK and USA were supplying the KMT in order to stall the Japanese in their land war. Aid was kept to the bare minimum needed to stalemate the situation (this was always a Europe first strategy for the USSR, UK and USA). The American Volunteer Group was only active from April 1941 to 4 July 1942 with a strength of roughly 60 aircraft.
When you look at the numbers, the argument that the US provided vast amounts of military supplies before 1945 evaporates. Let's start with rifles, LMGs and MMGs.
Starting with Rifles:
Hanyang Rifle Production:
1895-1909 | 1910-1932 | 1932-1938 | 1939-1944 | Total |
130,036 | 463,180 | 283,100 | 207,164 | 1,083,480 |
CKS Rifle Production:
1937 | 1938 | 1939 | 1940 | 1941 | 1942 | 1943 | 1944 | 1945 | Total |
45,010 | 38,000 | 30,000 | 25,600 | 35,600 | 14,000 | 33,000 | 67,500 | 102,000 | 400,710 |
Rifle Imports up to 1940:
| USSR | Germany | Belgium | Czech. |
1937 | none | none | 2,500 | none |
1938 | none | 50,350 | 62,540 | 61,980 |
1939 | 50,000 | 49,960 | 42,421 | 38,017 |
1940 | none | none | none | none |
Notice that the US is entirely absent from rifle imports in the early war. The US supplied 20,000 rifles in 1942 to the Chinese Army in India (Chinese troops trapped in India after the Japanese captured Burma). Requirements for new rifles were recognized in 1943, but were not received until 1944. 43,969 rifles were shipped by the US in 1944 and 182,206 were shipped in 1945. However, this does not account for the actual number of rifles received by the Chinese forces in China due to logistics issues. By the end of January 1945 only 5,891 rifles had been issued to Chinese forces in China. By the end of May 1945 100,710 rifles had been issued to Chinese forces in China. For the period of 1940-1944 KMT foreign weapons imports dried up significantly. It was only until 1945 that US military supplies began reaching Chinese forces in China in any significant numbers.
Light Machine Guns:
| Prior | 1937 | 1938 | 1939 | 1940 | 1941 | 1942 | 1943 | 1944 | 1945 |
Imports | | | | | | | | | | |
ZB26
(Czech) | 13,236 | 1,243 | 7,629 | 8,141 | 0 | 0 | 0 | 0 | 0 | 0 |
Hotchkiss
(France) | 2,620 | 0 | 700 | 225 | 0 | 0 | 0 | 0 | 0 | 0 |
KE-7
(Swiss) | 2,225 | 0 | 880 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
FN M1930
(Belgium) | 4,148 | 0 | 4,762 | 2,650 | 0 | 0 | 0 | 0 | 0 | 0 |
Lahti m/26
(Finland) | 0 | 0 | 700 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
Madsen
(Denmark) | 0 | 0 | 500 | 2,000 | 600 | 200 | 0 | 0 | 0 | 0 |
Degtyarev
(USSR) | 0 | 0 | 2,600 | 3,000 | 0 | 0 | 0 | 0 | 0 | 0 |
Maxim-Tokarev
(USSR) | 0 | 0 | 1,000 | 400 | 0 | 0 | 0 | 0 | 0 | 0 |
Bren
(UK) | 0 | 0 | 0 | 0 | 0 | 0 | 925 | 1,500 | 1,000 | 9,400 |
Production | | | | | | | | | | |
KE-7 | 6,000 | 950* | 950* | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
ZB-26 | ? | ? | ? | ? | 1,324 | 2,440 | 6,000 | 9,391 | 13,571 | 13,863 |
* Estimated
Note that the US is absent from the table.
Medium Machine Guns:
| 1937 | 1938 | 1939 | 1940 | 1941 | 1942 | 1943 | 1944 | 1945 |
Imports | | | | | | | | | |
ZB37
(Czech) | 0 | 701 | 150 | 0 | 0 | 0 | 0 | 0 | 0 |
Hotchkiss
(France) | 100 | 203 | 1,080 | 608 | 0 | 0 | 0 | 0 | 0 |
Maxim 1910
(USSR) | 0 | 327 | 1,000 | 0 | 0 | 0 | 0 | 0 | 0 |
Browning M1917A1
(USA) | 0 | 0 | 0 | 0 | 0 | 0 | 144* | 211* | 2,160 |
Production | | | | | | | | | |
Type 24
(MG 08) | 626 | 1,060 | 1,971 | 2,468 | 1,860 | 1,980 | 2,680 | 2,986 | 3,063 |
Three-Tens
(Browning M1917) | ? | ? | ? | 514 | 520 | 310 | 260 | ? | ? |
* for Chinese Army in India
Again US supplies only start arriving in 1945.