What is what national day is august 11?

National Day on August 11 does not appear to be a widely recognized or celebrated holiday in the United States. However, there are a few international observances that fall on this date, including National Day in Chad, Independence Day in Pakistan, and National Day in Central African Republic. August 11 is also celebrated as National Son and Daughter Day in the United States, a day to honor and show appreciation for one's children.