The Poetry of the Vietnam War
https://www.poetryfoundation.org/collections/144186/the-poetry-of-the-vietnam-war
Poems from and about the American involvement in Vietnam
Audrey T. Rogers: On "Life at War"
https://www.modernamericanpoetry.org/criticism/audrey-t-rogers-life-war
An analysis of Levertov's most famous anti-war poem, "Life at War"
Life of Denise Levertov
https://www.britannica.com/biography/Denise-Levertov
Encylopedia Britannica entry on Denise Levertov's life
Why Did America Fight the Vietnam War?
https://www.youtube.com/watch?v=EunyfX-Zjo4
YouTube summary of American involvement in Vietnam from Prager University
