On this date in 1945, the USAAF 7th Fighter Command launched 100+ P-51's for the first mission of land based fighters over mainland Japan. The mission was a B-29 escort that were on their way to bomb an aircraft plant in Tokyo. 50 more VLR missions were flown between this date and August 14, 1945.
Here are a few paper items from my collection:
First, the 15th and 21st Fighter Groups were the P-51 units taking part in the very first VLR mission. This is a pretty neat booklet sent out most likely post war to members of the 78th Fighter Squadron, which highlights the April 7th mission, but also details some of their exploits during the course of those months that followed.