In the first line, the age is emphasized. It seems he had a family and he lived with them. We can say that the government called all the possible boys to war not considering how young they are. That’s why it says ‘from my mother’s sleep…’. They don’t seem to have considered of the ages of soldiers. They are kind of a killers as much as the enemy for sending children to war.
The meaning of the ‘turret’ word is tower. The last line shows to us that soldier’s death meant nothing to them as they washed his blood with a hose. Of course there could be some reasons for that. For instance; they were at war, so they couldn’t pay attention to all of the dead bodies etc. But reading it from here wipes it from our minds and present them as they never cared. Maybe they did or didn’t we can’t possibly know that. All we know is the line we have. The blood was washed with a hose. It makes you want to scream and reproach.
The Death of the Ball Turret Gunner is a five-line poem by Randall Jarrell published in 1945. It's about a (presumely) young soldier who died in the air craft during the World War II.
" From my mother's sleep I fell into the State,
And I hunched in its belly till my wet fur froze.
Six miles from earth, loosed from its dream of life,
I woke to black flak and the nightmare fighters.
When I died they washed me out of the turret with a hose."