Respuesta :
D. All of the above
The Guadalcanal campaign lasted for months and American troops fought through swampy marshes and took heavy casualties from the Japanese, as the Japanese were very unlike other troops, in which they did not know the art of surrendering, and was forced to fight to the death for the "Rising Sun". As there were swampy marshes on the island, tropical diseases was rampant, as well as troop movements were slowed to a crawl.
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It’s all of the above while they did resist they had problems with the insects of mosquitos and leeches expecially when by river