CANBERRA, Australia — A military exercise in Fiji involving the United States, Britain, Australia and New Zealand ends this week as the traditional allies counter China’s growing influence in the region. The 11-day Exercise Cartwheel in Fiji began Sept. 12 and ends Friday, the U.S. Embassy in the Fijian capital, Suva, said Wednesday in an email. U.S. Navy Cmdr. Victor Lange said the name of the exercise originated from Operation Cartwheel during World War II, in which the U.S. fought alongside