That goes For all other countries you have mentioned 99 % of the airforce in the world are flying Imported weapons that need Supply chain support from OEM
Not just
India fought all its major war based on foreign
Equipments in past hasn't it ??
Annual Spares supply and WWR(War waste reserves)established for these purposes only.
Hope you know the concept
That is why india or any nation except US,Russia, depends on imports from other resources
Countries rely on Allies in time crises
Even US and Russia cannot sustain long time wars without allied support that is
Why Warsaw pact and Nato Came into being.
Seriously Moment LCA compromised when it's chose GE engines
Americans are zero integrity when it comes to
Alignment
Until we develop Turbofan Engine technologies
We still count as a Beginner in military aviation sector.