Which best explains why barbarian groups were able to weaken the byzantine empire?

D. The empire had several unprotected areas for warring groups to invade.

Explanation:

1. true?

2. great britain, my assumption.

3. politburo

4. dissension

5. russia (did you misspell

6. berlin

7. romania

8. roads

9. mikhail gorbachev

10.   yugoslavia

11. cruel

12. bolsheviks

13. reduced the secret police

hopefully i you out with this! °ω°

china unilaterally claims the entire south china sea as sovereign territory, then builds artificial islands to bolster its claim. it suddenly activates an air defense identification zone over the east china sea, and threatens to down any aircraft that does not report its position. it builds roads into indian territory, then redraws the maps to show that it is actually chinese territory. the people's republic under president xi jinping is quickly becoming the bully of asia.