Of all the World War I poets, Wilfred Owen stands up best, I think (and yes, I do know I am far from alone). His words feel much more modern to me, almost contemporary. "And each slow dusk a drawing-down of blinds." Great word control.
Here are two other passages from him:
And then there is this:
And of course if you haven't read his great poem about a gas attack, you should do that right now.
Thomas E. Ricks covered the U.S. military for the Washington Post from 2000 through 2008.