I think I recall a Korean B.707 being intercepted by fighters and force landed some time in I think the early 70’s as well?
I remember that. Wasn't it on a polar route and was forced to land on a frozen lake in the Russian Arctic?
Meanwhile, referring back to the Vincennes fiasco; All this talk of calling or not on VHF or UHF Emergency frequencies is all very well but what was wrong with the US Forces talking to the relevant FIR people and asking "Do you have anything inbound from Iran?"