China's military has expanded its bomber operations in recent years while "likely training for strikes" against the United States and its allies, according to a Pentagon report released on Thursday. The assessment, which comes at a time of heightened US-China tensions over trade, was contained in an annual report that highlighted China's efforts to increase its global influence, with defence spending that the Pentagon estimates exceeded $190 billion in 2017. "Over the last three years, the PLA has rapidly expanded its overwater bomber operating areas, gaining experience in critical maritime regions and likely training for strikes against US and allied targets," the report said, using an acronym for China's People's Liberation Army. The report comes as China and the United States plan to hold trade talks, offering hope they might resolve an escalating tariff conflict that threatens to degenerate into an all-out trade war. The report said that while th