Your students get to study in Turkey for degrees relevant to military tech and your graduates get junior-positions in Turkish institutions for know-how accumulation. With this knowledge Indonesia can design their own military products. This requires a strategic partnership of at least a decade though.
I am pretty sure @Anmdt had said to you before, even as Indonesian i feel slightly ashamed but there is always lacking of commitment for what we did especially one which need long term commitment. Boramae and Nanggala second batch contract is already a glaring example.
And thing is not that simply in Indonesia, even some people doesn't know what it is economy of scale and easily back off from presented number and resource need to be spent to achieved that. C705 projects is another example though the Chinese is giving more leeway at the time before the cooperation being ended one sidedly. In this aspect countries like Pakistan or even India is much more worthed and decent.