A national emblem is a symbol that represents a nation. It may or may not appear on the national flag. It is usually something from the natural world, eg. an animal or bird, but can be any object.
The official national emblems of nations of the world in alphabetical order :
... had been fighting with the Ottoman Empire and its sultan, Suleiman the Magnificent, for a number of years. The expeditions of the Ottoman force along the Mediterranean ...