More than a week after the Philippines declared victory over pro-Islamic State militants in Marawi, security officials have expressed concern over lone wolf attacks, with Australia issuing a “high threat” alert about travel to Manila. The Philippines’ military declared a total victory over the Maute fighters linked to ISIL in Marawi on October 23 after an operation that began with clearing some 3,000 buildings and structures.  Analysts say there are factors at play that indicate Islamist violence could still be wrought on the country — perhaps in more varied and deadly ways.