When they allow it. They already restrict certain electronic data to specific coalition nations. We had an incident last year where our a/c were prosecuting a target in Iraq and some Iraqi F-16's showed up. They did whatever they felt like and then complained when we told them to stay out of the kill box. Now we can have the biggest TIC on the planet supported by everything in our arsenal and if a single C-208 trainer flies into that airspace we have to stop and let him take his joy ride.
The Iraqis want our help and money, but on their terms. We're propping up their toilet and they want to dictate terms to us?
I'd let them burn and spill the "why" on every media outlet possible.