sentences:  45 Squadron succeeded in destroying with its bombs a pontoon bridge, a boat, and a trench filled with soldiers, before inflicting at least a hundred casualties with machine gun fire.Heavy rain washed other bridges away and by 18 June the stranded Austrian forces on the Allied bank of the river were routed by a counterattack.On 12 July 1918, Howell and Lieutenant Alan Rice-Oxley took to the sky in their Camels.