What flag is this?

Second:

This is our country's flag,
This flag so fine.
It is my father's flag
And it is mine.

Third:

What are its colors?

Fourth:

White stars in a field of blue,
Stripes white and red.
See our "Red, White and Blue"
Waving o'erhead (waving flags).

Fifth:

What do these colors mean?

Sixth: