As a possible Taiwan visit by US House Speaker Nancy Pelosi sparks explosive rows between Beijing and Washington, the reaction from Southeast Asian nations has been more muted, including calling upon the two rival powers to defuse tensions. International relations and defence experts say it is understandable that Beijing sees Pelosi’s likely trip as a “provocation”, a move to support “Taiwan independence” in violation of the US’ avowed one-China policy. Washington, however, says the visit aims to stop mainland China from trying to change the status quo across the Taiwan Strait by force. Beijing considers self-governed Taiwan to be a…