I welcome all your comments regarding the following sentence.
" Consider our forlornness in comparison to the uncountable numbers of enemy's corps."

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@Peachey What's wrong with that "you reap what you sew'?

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@ Professor B:  "You rip what you sew?" (hehe sorry... couldn't resist)

My jury is out regarding "forlornness".  How about "melancholy"?

For "in comparison to", how about "compared to"?

Change "of enemy's corps" to "in the enemy's corps".

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If you live by the sword, you will die by the sword.

You reap what you sew.

Or as John Lennon said, "Instant Karma is going to get you"