Five Pointed Star

This star is also the most widely used military symbol and is found on the tanks and fighter jets of all the superpowers, as well as in the armed forces of all other countries on officers. 

The fivepointed star is also a symbol of ideologies and appears together with other structures to denote different creeds and belief systems: with the hammer and sickle it representsCommunism; 

 with the crescent moon, Islam;