Police say gangs are responsible for a disproportionate amount of London's crime - half of all shootings, a fifth of stabbings and one in seven rapes.
A quarter of aggravated burglaries are also gang-related, as are 22 per cent of serious violence and almost a fifth of muggings.
The vast majority of gang members are men aged between 18 and 24.
An increasing number of women are involved, but they are still only 5 per cent of those charged with gang-related offences.
However, women are 20 per cent of the victims of gang crime, of whom 53 per cent are black and a fifth white.
Assistant Commissioner Mark Rowley said the new unit - which includes officers working for Operation Trident, which investigates gun crime in the black community - would co-ordinate intelligence and operate a more "joined up consistent approach" across the capital.
While many gangs are territorial and stick to certain areas, others spread their tentacles wider. Task forces will be set up in 19 problem boroughs, co-ordinated by the central Trident command.
Yesterday, 1300 police officers and staff were involved in raids throughout London, in which 158 people were arrested.
A kilo and half of heroin and crack cocaine was seized, as well as firearms and thousands of pounds in cash.
- Independent