With the advent of the Balkan Wars, Prince Andrew was reinstated in the army, and Princess Andrew acted as a nurse, assisting at operations and setting up field hospitals, work for which King George V awarded her the Royal Red Cross in 1913. During World War I, her brother-in-law King Constantine I of Greece followed a neutrality policy despite the democratically elected government of Venizelos supporting the Allies. Princess Andrew and her children were forced to shelter in the palace cellars during the French bombardment of Athens on 1 December 1916. By June 1917, the King's neutrality policy had become so untenable that she and other members of the Greek royal family were forced into exile when her brother-in-law abdicated. For the next few years, most of the Greek royal family lived in Switzerland.