National Anthem to glorify War

I wondered why do we have to do allegiance to the flag while the national anthem is blaring lol attending USC women tennis match;  it's all about provoking emotion and instilling patriotism.

According to George Mosse's very interesting

Fallen Soldiers: Reshaping the Memory of the World Wars by George L. Mosse (Dec 12, 1991)

 which I borrowed and am reading now, it came into being for just that purpose. 

 No wonder most National Anthems describes blood-curdling battle scenes lol.  Glorifying individual's sacrifice for the Nation's war aim, is the gist. Needlessly say this kind of 'emotional appeal' was discredited after WWI, but is still pretty much alive, such as in monuments for the dead, etc. According to Mosse Christianity has been used to sanctify this.

Patriotic marketing is pretty rife in USA, for example a big American flag was put on the wall at Big Boy restaurant, you rarely see that at South Korean restaurants lol.

Another interesting thing, while the French in the Revolution emphasized Roman Republican virtue, for Germans Protestant Christianity was a paramount influence; no wonder my mentor Tom Moran watched Riefenstahl's 

Triumph of the Will (Special Edition) Starring Adolf Hitler, Hermann Göring, Rudolf Hess, et al. (1935)

to remember what Christians can do at Christmas lol.