MiG 25BM equipped with Kh 58U missiles
To be brief: About the reasons that the U.S. could had secretly send the new F 14A Tomcat II equipped with AIM 54A Phoenix missiles to protect the air bridge with military aid to Israel in 1973 during the Yom Kippur War. The presence of F 14A was aiming to protect the air transports as C 5A Galaxy and C 141 Starlifter of a possible attack by MiG 25 RB since the Soviet Union had operated the MiG 25 RB / P between 1971 and 1972 in Egypt.
MiG 27K and MiG 27M
How's my fault for having wrong in the first place, it is my duty to repair the same ,since there is possible to visualize the nose of the MiG 27 in the photo to prove whether it is the version MiG 27K or MiG 27M, one indicating that it is the MiG 27M is that it does not has the fences in the top of the sleeve of the wings as the MiG 27K has .
The reason for those fences in MiG 27K could be attributed to providing better aerodynamic stability for the TV target laser designator Kaira 1, however when providing better aerodynamic stability reduces the maneuverability of the fighter.
Those fences also sheltered launchers of the chaff / flare but the shape and position of these were aimed to improving the stability for the weapon system and its precision in the attacks missions againt ground targets.
MiG 27K equipped with TV/Laser Designator Kaira 1 in the right photo and MiG 27M equipped with Laser Designator Klen in the left photo.
Source: 'Aviation and Cosmonautics' 2004, No.11 (No.101)
Source: M-Hobbie magazine
MiG 25BM and MiG 27K from Soviet Union in the Iran/Iraq War
The Soviet Union would never admit that their aircraft had been operated in real missions during the Iran / Iraq War, since this would be a declaration of war against Iran.
In my humble opnion I do not believe that the nations that formed in the past the Soviet Union would be interested in confirming these actions today. How several people could have participated in this, problably some allegedly state about this but keeping their identities in secret, even with all political changes in these countries the Siberia territory has not changed, since it is remain cold as the time of the Soviet Union.
Many military strategists prefer to analyze weapons performance in real conditions or near it . The reason that even in the more elaborate testing situations, some parameters can not be simulated.
The most important of these is the interaction man / machine, which in a real combat human factor changes considerably, since in simulations are not trying to shoot and kill the human factor.
There is a term for this is that the war fog, due to which the performance of weapons is reduced because the real conditions of employment of the same
In the Soviet Union this emphasis on analysis in real conditions it were a tradition in much at the costly lessons of World War II.