Why did John Jackman not join in the fighting?

Why were there so many casualties during the war in Vietnam? What is it called when a person leaves their home country due to civil war and persecution? What advantages did the North have over the south in the Civil War? What year did the us enter the world war 2? What was the last treaty signed at the end of the Great War? The Bay of Pigs invasion was an embarrassment to? What were the causes of the Cold War and how did it disrupt the attempts to establish peace in the aftermath of World War 2? How do you use a scaling tower with a battering ram attached? What was the name of the two Washington DC snipers? What was pikes first name? Who did Germany send the Zimmerman Note to? What was the drummer boys in the civil war? What was referendum in the progressive era? What were the sizes of the navies in World War 1? Who were the three presidents who were generals in World War 2? What military and labor practices did African employ prior to the European Slave Trade? How many battles did Toussaint L'Ouverture lose? What was the rationing allowences in world war two? Which did more people die by in the civil war bullets or disease? Did The Confederacy finance its war effort primarily through foreign loans?