An official from Libya's rebel administration - a volunteer like so many in this DIY revolution - has been trying, with a biro, to explain the chain of command that is, or should be, emerging from the chaos of militias, local brigades and official military structures that together make up the force fighting Colonel Muammar Gaddafi.

BBC: Who's in charge? Sorting out Libya's rebel armies

Armor Holdings, for example, subcontracts its business in Russia (protecting multinationals such as Philip Morris, a food and tobacco company) to a local security company formed by veterans of the Alpha commando force, one of the Kremlin's crack military units before its disbandment.

ECONOMIST: Corporate security