WSJ's Sam Dagher reports continued allied strikes in Libya have
given rebels reprieve and allowed them to move westward and
attempt to reclaim territory lost recently.  The U.S. and its
allies markedly escalated their campaign in Libya, pounding
tanks and artillery in a battle to keep the Gadhafi regime's
forces from controlling two cities pivotal to the rebel
movement.  Meanwhile, the North Atlantic Treaty Organization
failed in another day of meetings to decide who would take
command of the operation. But NATO members appeared to be
converging on an approach that would allow the alliance to
police the no-fly zone already effectively in place across the
country's populated northern coast.  On Edge in Libya  Track the
latest events in Libya.  Rebels Fight for Ajdabiya  A rebel
fighter crouched on the road at a checkpoint near Ajdabiya
Wednesday. Aris Messinis/AFP/Getty Images  Having pushed Col.
Moammar Gadhafi's forces back from the rebels' de facto capital,
the eastern city of Benghazi, in the opening salvo