After the fall of France in 1940, Britain's predicament in the Middle East became worse still when the French authorities in Syria and Lebanon aligned themselves with the new Vichy government. The British, already outnumbered by Italian forces and uncertain of Arab loyalties, now found their northern flank controlled by men susceptible to Axis pressure. Both Churchill and de Gaulle responded with the determination that the Levant should be denied to the Axis and placed in friendly hands. Despite this common resolve, however, fundamental differences emerged during the Anglo-Free French invasion of Syria in 1941. This hastily improvised venture was marred by rash political tactics, poor liaison, bad diplomacy and the interventions of Churchill and de Gaulle. Although the Syrian flank was secured, this affair did serious damage to Anglo-Free French relations, created new problems in the Levant, and precipitated personal antagonism between Churchill and de Gaulle.