Complex sentence: However, according to Rose, any sympathy she may have had would have dissipated when Hitler closed the clinics whereas on 12 July 1940 she wrote to Winston Churchill to offer a slogan, "Fight the Battle of Britain in Berlin's Air".
Split into simpler sentences: However, according to Rose, any sympathy she may have had would have dissipated when Hitler closed the clinics. On 12 July 1940 she wrote to Winston Churchill to offer a slogan, "Fight the Battle of Britain in Berlin's Air".