According to my information, the the 2210,4010,4110 and 4115 were made in Japan by Yanmar/Kansaki for John Deere. Now the 2305 and 2320/2520 are at least assembled in the USA (Augusta plant). The mid frame 4000's (now the 3000 series) and 4020's are also made in Georgia. The 5000 is US made except for the 5203 etc. which is made in India. The 6000 series is made at MannheimWerks in Germany. For years John Deere has used Yanmar powerplants and Kansaki hydro transaxles (now made in Tennessee) for its smaller tractors. Even though there is an international flavor to these machines, if anything, John Deere's presence has caused companies like Kansaki to settle here in the USA. I doubt that company would have built a transmission factory here had it not been for John Deere's presence in Augusta.
John M