Complex sentence: During the crisis, Natalia obeyed her husband's order and escaped from Russia with a Danish passport, disguised as a Red Cross nurse and in July 1918 her husband was murdered in Perm, by the Cheka.
Split into simpler sentences: During the crisis, Natalia obeyed her husband's order and escaped from Russia with a Danish passport, disguised as a Red Cross nurse. In July 1918, her husband was murdered in Perm, by the Cheka.