What was the major cause of world War one

Explain why hitler had over 6 million jewish people killed during the holocaust and what did it hope to accomplish

What lured the spanish to the area of oklahoma?

It can be inferred that the dramatic increase in defense spending by germany was the result of. (a) attempts by great britain to take german colonies. ( b) fear of a two-front war against france and russia (c) the need to put down a communist rebellion (d) a competition with the allies to produce atomic weapons