With the war in Iran entering its fourth week, Western officials are planning for an uncertain future dominated by conflicts in Europe and the Middle East, and fearing new battles in Asia. Senior Nato and Western intelligence sources increasingly describe a world where conflict is no longer contained within neat regional silos. They have told The i Paper of their fear that tensions in Eastern Europe, the Middle East and Asia are drawing a clear line between East and West.  Rather than a march towards a traditional, single, explosive global war, officials warn that a gradual drip of overlapping conflicts – sparked by Donald Trump’s brutal foreign policy – could slowly drag allies into a conflict on multiple fronts with their enemies.  …