Yes, we can still attack but I don't think we will. Since it is Russian leased we'll leave it alone. That said, anywhere else they have planes is free game and keeping them in one place makes them less effective. The reason is they aren't in optimum positions throughout the country so they spend more fuel getting to a target, have less time to loiter and attack over the target and then have to spend more fuel getting back to base. All the while they are susceptible to anti-aircraft fire from multiple different platforms.