Can any war be explained without using all three levels of analysis? What are the advantages and disadvantages of using more than one level of analysis to explain a war?

War

Can any war be explained without using all three levels of analysis? What are the advantages and disadvantages of using more than one level of analysis to explain a war?

Must be at least 3 paragraphs long no maximum length.
Use, in your answer, discussion of points made in your assigned readings this week.