India claimed to have intervened in Sri Lanka to secure Tamil interests. In actual fact, India came to secure its own interests.
I have gained self-confidence, courage and the support of my people.
If somebody trusts me, then I will reciprocate.
However formidable a military power you may be, you cannot impose upon a people anything against their will.
A small nation can fight a superpower with determination and dedication.
If I am cheated or betrayed, I will react.