BRUSSELS - One month after the first bombs rained down on government forces and with no end in sight, NATO allies cannot agree on how to boost their firepower and break a stalemate in the Libya conflict.

France and Britain, which fired the first shots on March 19, have struggled to convince allies to intensify the air war while NATO commanders are scrambling to obtain even a few more ground-attack jets.

Politically, leaders in Paris, London and the United States vowed in a joint letter last week to keep up the campaign until Muammar Gadhafi leaves power, but the resilient leader has defied his one-time allies, and now Western foes.