Veteran's Day

My grandpa served in WWII in the Philipines.  I guess he had three purple hearts.  I asked Mom, but she won't tell me what they were for.  I think one actually had to do with blood donation.  Grandpa was O- (as am I).  A little fuzzy on the details, but I guess they needed blood to save another soldier's life.  Grandpa said they could take what they needed from him.  They took quite a lot and almost killed granpa.  That is why I like to donate blood sometimes when I feel like I can.