Individuals invading country forming another (9)

I believe the answer is:

indonesia

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'forming another' is the definition.
I can't tell whether this definition defines the answer.

'individuals invading country' is the wordplay.
'individuals' becomes 'ones' (one can mean an individual person or thing).
'invading' indicates putting letters inside.
'country' becomes 'india' (India is an example).
'ones' put within 'india' is 'INDONESIA'.

Can you help me to learn more?

(Other definitions for indonesia that I've seen before include "An ionised country of South East Asia" , "I said none (anag) - country" , "Muslim republic" , "part of Asia" , "State" .)

I've seen this clue in The Telegraph.

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