Answer:
That enlisting to fight in a war was patriotic, brave and honorable thing to do
Step-by-step explanation:
Over there was written by George M. Cohan in 1917. It is a song that encouraged Americans to enlist in the army and fight in World War I.
The lyrics suggest that Johnny (the name usually used to refer to the unknown Anglo-American common man in the songs) should get the gun and rush to the war to defend the liberty from the aggressor. It refers to the Americans as Yanks (“the Yanks are coming” and German and Austrian-Hungarian forces as the Huns (“show the Hun you're a son-of-a-gun”). It tells the men to depart with sweetheart and family and that they will be proud of his great deeds (“make your Daddy glad to have had such a lad”)
The lyrics show us that fighting in the war was considered to be noble and brave, something worth singing about. The whole country was proud of the men who went to fight for the US. The lyrics also showed us that Americans saw themselves as the big factor in the war, someone of whom the other side should frat and fear.