For the U.S. and its allies, the victory in the Tenaru battle was psychologically significant in that Allied soldiers, after a series of defeats by Japanese Army units throughout the Pacific and east Asia, now knew that they could defeat the Imperial Armies in a land battle.
For amerikanerne og deres allierede var sejren i slaget ved Tenaru af psykologisk betydning, idet allierede tropper efter en række nederlag til japanske hærenheder over hele Stillehavet og i Østasien nu vidste, at de kunne besejre de japanske hære i landslag.