The Southern Cross Flag is a square flag. The common rectangular Southern Cross Flag is actually the flag of the First Army of Tennessee. Because it was originally used in allied navies, it is also called "bow flag". After the ship's bow flag was adopted, the "Allies" added a white border to the periphery of the Southern Cross Flag to become a flawless flag.
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The so-called "federal flag" is the military flag used by the Confederate army at that time. The four-year civil war ended with the collapse of the South.
Although the South was defeated, the American government did not completely ban the use of the federal flag, and even allowed the southern States to continue to use the "federal flag" to commemorate the wartime southern generals.
In World War II, white soldiers from the southern United States will once again plant the Confederate flag representing the southern United States on the occupied land. During the Korean War, "Confederate flags" were also everywhere.
Not only that, the Confederate flag also entered American military bases, especially in southern States. The Confederate flag is hung not only in ordinary families, but also in front of the state government. This flag also rose high with the American flag and fluttered in the wind.
Baidu Encyclopedia-United States of America