28 Days Later2002

Major West:
Who have you killed?

Jim:
What?

'Major West:
Since it began, who have you killed? You wouldn't be alive right now if you hadn't killed somebody.

Jim:
I killed... I killed a boy.

Major West:
A child?

Jim:
Yeah.

Major West:
But you had to kill him. Otherwise he'd have killed you.

[...]

Major West:
I promised them women.

Jim:
What?

Major West:
Eight days ago, I found Jones with his gun in his mouth. He said he was going to kill himself because there was no future. What could I say to him? We fight off the infected or we wait until they starve to death... and then what? What do nine men do except wait to die themselves? I moved us from the blockade, and I set the radio broadcasting, and I promised them women. Because women mean a future.