Thousands of fighters from across western Libya have held a mass parade in Tripoli, showing off heavy machine guns and rocket launchers and firing rifles in the air.
The procession Tuesday was a show of force by members of some 100 militias that announced a new, unified military council the day before.
It appeared intended as a warning to anyone who might stage attacks during celebrations this week of the one-year anniversary of the start of the uprising that ended with the death of Moammar Gadhafi last October.
Fears of pro-Gadhafi activities have mounted following a call by one of his sons for a new uprising.
The National Transitional Council that now rules Libya has struggled to control the hundreds of brigades that fought in the war.