Answer:
they where posted behind the lines during each battle because behind the trenches and lines their were shops command centers and other stuff so officers and soldiers had to stay by the trenches because they had to fight and they shouldn't just be walking around.
Explanation: this is the answer I done this question before its not word for word but this is really close.
The popularity of imported opium in China
The president during this event was Thomas Jefferson.
Daniel Webster was an outspoken advocate of nationalists.
He was actually affiliated with the National Republican Party from 1828 to 1833.
