The Word for World is Forest - Vietnam War

I thought that ecological concern was an important interpretation of The Word for World is Forest, but personally I found Le Guin's commentary on the Vietnam War much more interesting. Captain Davidson assumes the role of the American military and pro-war supporters, the Athsheans represent the Vietnamese and Lyubov is a characterization of anti-war attitudes in the U.S. Captain Davidson uses fire bombing and burning of the forests to attack his enemy, much the way the U.S. military carpet bombed and dropped napalm on the jungles of Vietman during the war. On page 163 Davidson's tactics are discussed, "of course that was his real weapon when it actually came to setting up massive retaliation. Forest fire. He could set one of these whole islands on fire, with bombs and firejelly dropped from the Hopper." By destroying the forests Davidson destroys the Athshean world because they are one in the same. This is commentary by Le Guin on the consequences of the tactics employed by the military in Vietnam. Davidson is depicted as cowardly and arrogant in the text and if he embodies the American military, then their actions too are callous and cowardly in Le Guin's eyes. Le Guin's view on the war are also  brought up when Gosse says to Davidson, "you think if you keep burning up villages they'll come to you and surrender--three million of them. Right?" This quote brings up the point that if people, or Athsheans, are willing to die for their cause or way of life how is more violence going to deter them?