[Targan]

It is sort of addressed in the article.

Originally Posted by The War Zone's Tyler Rogoway

The AGM-88 could work with relatively minimal integration, potentially leveraging a federated interface, such as e-tablet, for very basic functionality. Ukraine's fighters are Soviet-era machines and totally lack the right interfaces, including the basic bus architecture, for modern NATO-compatible weaponry. But it's possible a relatively crude modification could have been adapted for this single weapon. There is also the possibility of a clandestine transfer of Soviet-era aircraft from NATO states that have been upgraded with NATO-standard bus architecture and adaptable avionics that could provide an interface for the HARM.