متن اصلی - آلمانی - Gedenkt der Toten! Aber kämpft für die Lebenden!

Hello
"He shall die but he is struggling for life"?
Correct?

CC: iamfromaustria

No, it's absolutely wrong! Correctly, it would be "Bear tribute to the dead (ones)! But fight for the living ones!"

Both is written in the second person plural and in imperative.

"bear tribute" should be the formal expression of "think of".