Hypothetically, if Iraq were to submit a request for assistance to the Russian Federation, and Russia were to agree to fly combat missions, how would these missions be executed? Latakia is at capacity, and although they could fly missions from mainland Russia, it wouldn't be very efficient in the long run. New base in Iraq? Borrow a field from Iran?
Kut Airbase already has the following:
1-Chinese Team training and operating maintaining the CH-4B UCAV
2- Russian Team training on and maintaining Iraqi Mi17 / Mi28 / Mi35
3- Some Iraqi SU-25s based out of there too.
Its a massive place and without any "US and allied state" presence at all... in fact that's where that predator drone crashed a week ago even though the area was neither a flightpath to ISIS land and hundreds of km from any ISIS types... it seems uncle sam was snooping around Kut.
Here's Kut airbase (note its an old sat image, facilities have been upgraded since...)
Near Kut there is "suwayra" air base that the Korean Chaebol Hanwha is renovating for Iraqs T-50IQ. Also no US presence there... but Koreans are there.
and here's Suwayra (once again old sat image):
If the russians don't want to base out of Kut or Suwayra for whatever reason... they can choose to operate out of...
Nu'maniah air base (next to the old tank factory which is now being renovated for production)
or if they want to get closer to the action... then Samarra East airbase is both secure as well as close to the front line.
obviously they'd avoid any base with US presence like Al Assad, Habaniya, Balad, Baghdad Muthanna, Tikrit AB etc...