There are many differences between those two poems. The tone of the first one is pompous and the second one has a descriptive tone. 

In the first poem, we can see an apology  for  the crimes of the World War 1 and this poem is written by a man who is born a wrong blame for something he has never commit.

In the second one, the poet urges us to continue the actions like them.

The first poem we believe that it matches with the picture on the slide 34. The second one matches with the picture on the slide 54.