Can come together quickly, says Admiral Karambir Singh. The Quad navies of India, the U.S., Japan and Australia “already” enjoy a “high degree of interoperability” and have the capability and capacity to come together in an “almost plug and play mechanism” if the opportunity arises, Navy chief Admiral Karambir Singh said on Wednesday. He stated that it would not be surprising to see a Chinese naval expansion in the Indian Ocean region. “We have seen regular Chinese naval presence in the Indian Ocean region for over a decade now. If the Chinese look west from where they are, their energy, markets and resources are located to their west. So, it wont be surprising that soon they would be coming into the Indian Ocean, as there is a saying that the flag follows the trade,” Adm. Singh said at the ongoing Raisina Dialogue, to a question on the rapid expansion of the Chinese Navy.