How does Twain's decision to insert his own writing between passages from Susy's Biography affect the meaning of the passages from Susy's Biography?

1. it was caused by feudalism

2. charlemagne used christianity as a major cornerstone for his rule. cloisters were built all over the empire to act as centers for the (re)population of the vast european wilderness.

3. the europeans feared the next raid every time chetak

i'm not so sure about #6. but i hope i you with the first 3.

the commander in chief

which statement explains one of the reasons world war 1 was so much more destructive than earlier conflicts