Destroying ISIS may not be such a protracted effort , but it would be more than a commitment of a few weeks . PM mobilizing British public for new campaign in Iraq , mindful last campaign was widely opposed . David Cameron has been cautious about whether air strikes might be extended to Syria . UK military is weak . Forces still remain in Afghanistan , defense spending is squeezed . Dilemma is that any military action may hasten more beheadings of hostages , said Tim Lister .
PM mobilizing British public for new campaign in Iraq , mindful last campaign was widely opposed . David Cameron has been cautious about whether air strikes might be extended to Syria . UK military is weak . Forces still remain in Afghanistan , defense spending is squeezed . Dilemma is that any military action may hasten more beheadings of hostages , said Tim Lister .