The German Air Force is among the nations taking part (Picture: MOD).
Aircraft from several nations have arrived in the UK ahead of Exercise Cobra Warrior.
Jets from the German, Italian and Israeli Air Forces landed at RAF Waddington on Wednesday.
They will join Royal Air Force and United States Air Force aircraft for high-intensity large force tactical training over the coming weeks.
The exercise develops the tactical leadership skills of aircrew and supporting elements within a complex air environment.
Personnel develop, plan and practise tactics, techniques and procedures during scenarios.
Around 50 aircraft of various types will take part in the Cobra Warrior, which will be the first time the Israeli Air Force has flown jets in UK airspace.
The exercise will take place next month and will be controlled by directing staff at RAF Waddington.
The exercise director, Group Captain Robert Barrett, said the RAF was grateful for the chance to train alongside the countries taking part on what he described as a "challenging exercise".
The Italian Air Force's Colonel Urbano Floreani said they are "honoured" to be part of Cobra Warrior.
Exercise Cobra Warrior takes place from 1-20 September.