When was the wilfred Owen quote subject is War and pity of War. The Poetry in said?

It's not clear what you're asking about. While Wilfred Owen wrote poetry about the horrors of war and the pity he felt for the soldiers, there's no specific quote that's commonly referred to as "the subject is war and pity of war."

Perhaps you're thinking of a particular poem or a line from one of his poems. If you could provide more information or context, I might be able to help you find the specific quote you're looking for.

Here are some examples of well-known lines from Owen's poetry that reflect the themes of war and pity:

* "My friend, you would not tell with such high zest/To children ardent for some desperate glory,/The old Lie: Dulce et decorum est/Pro patria mori." (From "Dulce et Decorum est")

* "What passing-bells for these who die as cattle?/—Only the monstrous anger of the guns." (From "Anthem for Doomed Youth")

* "Move him into the sun—/Gently its heat will warm him." (From "The Dead-Beat")

If you could give me more details about the quote you're thinking of, I can help you find the exact poem and line.