It chose Northern China, Manchuria, and Mongolia
They want to conquer other places because they want more land and resources and also to let other countries know they have power. In some cases like America before, Britons conquer America because they want labour and their resources for example cocoa.
I believe the correct answer would be strong/strength, because fort means strength.
Answer:
Strong
Explanation:
There were lots of new jobs and economic growth in the 1960's, which makes it strong. However, during recessions, it would be weak, due to economic downturn.