In an interesting Russian article on "topwar" entitled
<<
Returnable reserve: transfer of decommissioned weapons to friendly countries>>
There is an interesting hypothesis which mainly takes as its reference North Korea and subsequently also other countries considered not subject to the US and UK.
Here I report the part of the article.
Omissis
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Recently, Russia has significantly intensified its relations with North Korea. This is not officially announced, but “enemy voices,” in particular the British intelligence service MI6, talk about possible supplies of ammunition and weapons from North Korea to Russia. Potentially, Russia could also supply certain weapons to the DPRK, without compromising the combat capability of the Russian Armed Forces.
The least developed segments of the DPRK armed forces are the aviation and navy, which is not surprising, since both the air force (Air Force) and the navy (Navy) require huge investments and high-tech industry. At the same time, both combat and auxiliary aircraft and helicopters, as well as ships for various purposes, which require significant funds to ensure their safety in reserve and for disposal, are being withdrawn from the RF Armed Forces.
In particular, speaking about aviation, a large number of aircraft such as the MiG-23, MiG-27 have been taken out of service by the RF Armed Forces, partially taken out of service and continue to be taken out as they wear out, the MiG-29, Su-24, Su-25, Su- 27, Mi-8, Mi-24 helicopters and many others.
What would happen, for example, if of the 3,630 MiG-23s and 769 MiG-23UBs produced, approximately 400-800 aircraft were transferred to North Korea under special conditions? Plus a couple hundred MiG-27s and a couple hundred MiG-25s? And a little later, in our time, a couple of hundred Su-27s and MiG-29s? The list could go on and on.
In the present reality, the DPRK Air Force successfully operates a limited number of Su-25, MiG-23, MiG-29 aircraft, Mi-8, Mi-24 and Mi-26 helicopters, as well as other, less modern aircraft. Thus, North Korea is quite capable of independently restoring, operating and modernizing Soviet/Russian military equipment (possibly with the help of China).
Moreover, a special section in the agreement for the transfer of military equipment would provide for its return to Russia during a special period, of course, taking into account reasonable monetary or other material compensation, as well as the obligation not to replace, but to duplicate designations in Russian during operation in the DPRK. It could also provide for the training of Russian pilots, their retraining on equipment that is outdated for Russia, which in a number of scenarios can be extremely effective. For example, how far could MiG-25 fighter-bombers throw air bombs with universal planning and correction modules (UMPC)?
A party to such agreements may be not only the DPRK, but also other countries, for example, Iran, Serbia, Syria, Cuba, Vietnam and others who will be interested in the above-mentioned format of cooperation, who are not under the control of the United States and Great Britain, as well as capable of restoring and maintaining those weapons and military equipment that are supplied to it, albeit with the help of a third party (for example, Syria clearly will not be able to restore combat aircraft itself, but Iran may well help it)............