It's going to differ between people. Some people will have trouble staying focused on the prompt. Others will find difficulty in supporting their ideas. Still others may be unable to utilize grammar effectively.
The unsuccessful winter campaign in Russia exposed Napoleon's army to extreme cold and The French army's inability to master guerilla warfare led to its defeat in the Peninsula War.
They are funded primarily through state taxes. Public colleges and universities rely on state and local government appropriations to subsidize the cost of education for students. State tax revenues are the primary source of nontuition funding, but local taxes accounted for more than 11 percent of total appropriations