I would have thought some of it was purchased by Iran with the pallet loads of CASH they were given by someone with the initials BHO . . .
They got their weapons from Five (primary) sources:
1. The SAA (Battlefield captures and what defectors brought with them).
2. Retreating Iraqis.
3. Libya, via Turkey with an huge assist from the US.
4. Iran (paid for by the pallets of cash from BHO).
5. What they bought on the international arms market.