What is the theme of Edge of Tomorrow?

Related questions

1. Are they making another edge of tomorrow?
2. What happens at the end of live die repeat?
3. What happened at the end of Edge of Tomorrow?
4. Did edge of tomorrow make money?
5. Where was live die repeat filmed?
6. What is Tet oblivion?
7. Is it called edge of tomorrow or live die repeat?
8. How long was cage in the time loop?
9. Was oblivion based on a book?
10. Why did edge of tomorrow change its name?

Tags

1. #combat
2. #never
3. #military
4. #officer
5. #repeat
6. #stars
7. #cruise
8. #fight
9. #movie
10. #tomorrow
11. #named
12. #untrained
13. #becoming
14. #theme