asked the Secretary of State for Air how many Soviet-built YAK-25 fighters have been identified over Korea; and whether he is yet in a position to make a comparison between the performance of this aircraft and the MIG-l5.

The answer to the first part of the Question is "None." It would not be in the public interest to answer the second part.

Is the Minister aware that there is growing concern about the development of Russian jet fighter and bomber aircraft, and will he take an early opportunity of making a full statement on the subject'?

All I can say is that Russia is not the only country developing the most advanced types of aircraft.