Athens to change its policies. Eventually, on June 13, 1917, the English and French forced the departure of King Constantine; later that same month, a triumphant Venizelos arrived in Athens, thus reuniting Greece with foreign assistance and bringing her into the war on the side of the Entente, his political benefactor. Atlantis, by supporting the neutral stand of King Constantine, exposed itself to pro-German accusations. In backing Venizelos, The National Herald denounced its journalistic opponent for the endorsement of the monarch's policies. Both newspapers spurred the development of organizations to facilitate public expressions of support for their respective leaders. Rallies and proclamations increased from the autumn of 1916 and caught the attention of the American press, specifically The New York Times <ref>[https://timesmachine.nytimes.com/timesmachine/1917/07/09/96253999.pdf Greeks Here Pledge Faith to Allies; Rival Mass Meetings Celebrate the Return of Venizelos to Athens. Favor War Declaration: The Cause of Venizelos Is the Cause of America, They Say;-Speakers Stir Great Enthusiasm], The New York Times, July 9, 1917.</ref> Consistently condemned for alleged pro-German propaganda, Atlantis found itself investigated for possible violations of the Espionage Act of 1917. An investigation of its editorial policy and articles indicated that Atlantis did not violate the law. It might be pointed out that after Venizelos's return to power in June 1917, the sale of Atlantis in Greece was prohibited. This decade before World War I also was during the peak of Greek migration to the United States. Many immigrants regarded their stay in the United States as temporary and remained strong partisans in Greek politics. The pages of Atlantis and its rivals reflected that partisanship so vigorously that the Vlastos became embroiled in libel actions based on Atlantis articles. Some suits resulted from their criticism of consular and diplomatic representatives of the Venizelos government. After King Constantine's abdication in 1917, many Greek-American liberals regarded "Constantinism" as German propaganda, and attacked Atlantis reporting on Greek internal affairs as damaging to the Allied war effort. These attacks brought the newspaper's mailing permit under close government scrutiny. The Vlasto's fought hard to meet U.S. Post Office regulations for foreign-language press mailings, and to modify them. Atlantis in the 1920s During the 1920s, Atlantis is most noted for continuing themes the dramatic events of the previous war decade had overshadowed. After supporting relief efforts in the 1912 Balkan War and World War I, it performed this service again during the Greco-Turkish War (1919–1922). Another