During the bush war in Rhodesia in the 70's the Rhodesian Airforce mounted a raid on a terrorist camp over the border in Zambia.
The is the ATC transmission
“Lusaka Tower, this is Green Leader. This is a message for the station commander at Mumba from the Rhodesian Air Force. We are attacking the terrorist base at Westlands farm at this time. This attack is against Rhodesian dissidents and not against Zambia. Rhodesia has no quarrel, repeat, no quarrel, with Zambia or her security forces. We therefore ask you not to intervene or oppose our attack. However, we are orbiting your airfield at this time and are under orders to shoot down any Zambian Air Force aircraft which does not comply with this request and attempts to take off. Did you copy all that?”
Lusaka tower replies that they have understood, and ask whether civil aircraft are still cleared to land. Green Leader asks them to wait half an hour or so. The impression given is very much that the Rhodesians are totally in control of the situation. And when Lusaka tower was asked by the incoming Kenya airways jet who had priority, Lusaka tower simply replied "I think the Rhodesians do".