'A participant in many rounds of the border talks with China once told me that China seemed not interested in resolving the border issue as it wanted to keep it as a ready excuse to intervene in the sub-continent,' says Colonel (retd) Anil A Athale.
'With the recent challenging of the notion of the Indian Ocean Region being India's strategic backyard, China is gradually upping the ante in the maritime realm around India.'
'The intrusion in Chumar, during and beyond the Chinese president's visit, is unprecedented and has qualitatively changed the tone of the India-China relationship,' says Jayadeva Ranade, a member of the National Security Advisory Board.