New Delhi [India], March 14 (ANI): Navy chief Admiral R Hari Kumar on Monday raised concerns over growing geo-political power play in the Indo-Pacific, noting that the US-China rivalry in the region is likely to be a "marathon."In an address at the Vivekananda International Foundation (VIF) at "Vimarsh on National Security Challenges in the Maritime Domain," he said, "US-China rivalry is here to stay and it isn't short sp