The parallelism found in lines 4-5 “And pile them high at Gettysburg” “And pile them high at Ypres and Verdun” helps to show the speaker’s view points, which can best be described as Pile the bodies high at Austerlitz and Waterloo.

Shovel them under and let me work—
I am the grass; I cover all.

And pile them high at Gettysburg

And pile them high at Ypres and Verdun.

Shovel them under and let me work.

Two years, ten years, and passengers ask the conductor:
What place is this?
Where are we now?
I am the grass.
Let me work.

Your

He is opposed to war

Agrees that war is necessary

Thinks grass has many issues

the answer is selfishly. hope this !

they wanted the u.s. to fight on the side of the central powers.

depends on the age of the teen, many believe by the age of 16 a person should know the strong difference between right and wrong along with the difference between risky and immediate death. swimming with sharks might be dangerous but swimming with sharks while bloody meat is attached to you is just insane. even more if you have no idea what you're doing. however, no matter the age, as long as the person is skilled enough and has the mental and physical capacity to control their actions doing whatever sport they put their mind to is all that matters.