Explanation:
Blitzkrieg was too effective for its own good. The huge advancements it made on the USSR meant that it became more difficult to fight them as they needed supplies which were hard to get as they were deep into Russia territory.
The Korean War brought economic and social damage to Korea while boosting the economy of both Japan and the US. The Korean War also legitimized the United Nations and led to the expansion of military power and fed the growing anti-communist feeling across the US.
Answer:
1) a
2)not sure but i think its d
