Croatian Air Force Day
Croatian Air Force Day is held on December 12. Croatia. This event in the second decade of the month december is annual.
Día del Ejército or Army Day in Peru on December 9 (commemorating the victory of the patriotic armed forces at the Battle of Ayacucho in 1824);
St. Stephen's Day on December 26 (public holiday in Alsace, Austria, Andorra, Catalonia, Croatia, the Czech Republic, Germany, Hong Kong, Italy, Ireland, Luxembourg, Poland, Slovakia and Switzerland);