WORLD NEWS TOMORROW – LONDON – A large Protestant march through the heart of Northern Ireland’s capital has begun peacefully amid a heavy police presence.Tens of thousands are expected to participate in one of Belfast’s biggest parades in years, and authorities have deployed in force to prevent street clashes with Northern Ireland’s Catholic minority.

The Unionist marches date back to the 19th century and are a longstanding irritant between Northern Ireland’s two main religious communities and show no sign of fading away, despite a successful peace process.Nearly every aspect of the marches — from the parade route to the music played — is fought over by both sides.