Members of the Orange Order - known as Orangemen - march to mark the anniversary of the 1690 Battle of the Boyne The Twelfth parade in Belfast has the longest route, stretching to six miles (9.5km ...

The green flag stripe also evokes images of Ireland's lush landscapes ... imprinted in the center of the white stripe. Orange represents the northern Sahara Desert, white stands for purity ...

A social media post about Northern Ireland which used an Irish tricolour has been removed by 10 Downing Street. An edited version of the Instagram post has now been uploaded without the flag.