Answer:
They feared a military attack, as their military was not strong enough compared to the Western countries.
Explanation:
The answer to this question is A. Jet streams
Jet streams are located near the altitude of the upper troposphere. It's a movement of wind that travels from one side of the planet hemisphere to another. The movement of jet streams will bring up different temperature of air which could influence the weather that exist in certain regions.
I thinks it’s either C or D. I’m not sure!
