Answer:
lack of timber for building houses i think. I'm sorry if it is wrong. Go follow me at SSSniperwolf!
Explanation:
<span>cuban missile crisis
hope this helps :)
</span>
Manhattan Project
the development of the atomic bomb, the best-kept secret of the war, even Truman didn't know about it when he became president; it was called that b/c it was mainly being worked on at Columbia University in Manhattan
hope this helps!
(:
