President Barack Obama’s top military and intelligence advisers don’t believe Russia will abide by a just-announced cease-fire in Syria and want to ready plans to increase pressure on Moscow by expanding covert support to rebels fighting the Russia-backed Assad regime. Defense Secretary Ash Carter; Marine Gen. Joseph Dunford, chairman of the Joint Chiefs of Staff; and Central Intelligence Agency Director John Brennan have voiced increasingly hawkish views toward Moscow in recent White House meetings, calling…