What are the strengths and weakness of the North during the civil war

Strengths:

1.) large navy and fleet of trading ships

2.) 70% of nations rail lines to transport food and troops

3.) 4x free population to volunteer in army and work in factories

4.) 90% of nations industry including factories to produce weapons and war supplies

Weaknesses:

1.) few trained soldiers

2.) travel into unknown territories

3.) long distances to transport troops and supplies