Japan lodged a protest with the United States on Tuesday over two forced landings by American military helicopters in the past few days in Okinawa, while U.S. Defense Secretary Jim Mattis apologized to his Japanese counterpart over the incidents."Frequent accidents amplify the local people's anxiety," Japanese Foreign Minister Taro Kono was quoted as telling U.S. Ambassador to Japan William Hagerty during talks over the phone, according to the Japanese government.Kono told Hagerty that the Japanese government has "a serious concern" about the frequency of such accidents and incidents and ca…READ FULL ARTICLE