The defeat of Bulgaria by the [[Allies]] in [[World War I]] (1914–1918) ensured another change of hands for the town. TheWestern Thrace was withdrawn from Bulgaria under the terms of the 1919 [[Treaty of Neuilly]].<ref>[http://www.lib.byu.edu/~rdh/wwi/1918p/neuilly.html (27Treaty Novemberof 1919Neuilly, article 27 (3), required48]</ref> The regin was under temporary management of the ceding[[Entente]] led by French General Sharpe. In the second half of April 1920 in [[San Remo conference]] of the prime ministers of the main allies of the Entente powers (except [[USA]]) Western Thrace fromwas Bulgariagiven to Greece. However, Bulgaria retained the right of transit to use the port of Dedeagatch to transport goods through the [[Aegean Sea]]. The change of guard between Bulgarian and Greek officials occurred on May 14, 1920. The city was soon visited by [[Alexander I of Greece]] amidst great celebration. He was the first [[List of Kings of Greece|King of Greece]] to visit the town which was renamed in his honor.