I would go with True because any historian needs a lot of patience to get what they want or to learn about something etc..
The Yellow and Yangtze Rivers
<span>The Japanese reached Guadalcanal in May 1942. When the allied forces spotted construction of an airfield on Guadalcanal, It was one of the most hotly contested campaigns for control of the ground, sea and skies of the war. Guadalcanal became a major turning-point in the war as it stopped Japanese expansion.
-Wikepedia
This should answer all your questions. I hope it helped. Have a great night!
</span>