not positive but I think it's a
A
We recognize December 13th as the birthday of the National Guard<span>. ... December 13, 1636, thus marks the </span>beginning<span> of the organized militia, and the birth of the </span>National Guard's<span> ... </span>Soon<span> afterwards, </span>National Guard<span> Army </span>Air Forces<span> units began to be ... At the time when the </span>Air Force<span> was </span>created<span> in September, 1947 i think this is right.</span>
