The presence of a small British naval squadron in the region rendered Causation this plan impractical and additional British reinforcements under Rear-Admiral Sir John Borlase Warren and Lieutenant Colonel George Airey strengthened the defenders to the point that sallies could be made Action against French offensive positions .

They felt Change_sentiment that a battleground victory was impractical or impossible and pursued Cause_to_make_progress a strategy of trying to politically integrate Cause_change_of_position_on_a_scale the insurgents into the mainstream .

After the capture Conquering of Volterra by the Imperial forces Military_operation and the death Death of Francesco Ferruccio at the Battle of Gavinana , further resistance became Becoming impractical , and the city surrendered Surrendering in August 1530 .