1915, when the Kingdom of Italy joined the Entente Powers after the Treaty of London, there were no war operations on the Adriatic, but since then the maritime conflicts became frequent. Due to the Allied blockade of the Strait of Otranto, trade in the Adriatic almost completely stopped. The government recruited many ships for military purposes, while the civilian sailing has been almost completely suspended. Mandatory blackouts were imposed on the islands and in the ports due to the fear of bombing. A number of church bells were removed, melted and used for war purposes. Fighting was also taking place around Lastovo and the distant islands so artillery batteries were placed there. In 1917, French Air Force bombed Lastovo. In Dalmatia, hunger and scarcity began to emerge, while at the same time Hungarian laws banned the export of foodstuff to the Austrian half of the Monarchy (which Dalmatia was part of) in the case of war. Dalmatia received food aid through the port of Trieste, but the amounts were inadequate, sometimes even completely useless, and often arriving too late (for example, supplies intended for 1917 arrived in 1918). Therefore, Franciscans and benefactors from Zagreb organized the action of sending Dalmatian children to Slavonia and Moslavina so they could have adequate nutrition. The war destroyed Dalmatian agriculture. At the end of the war, epidemics of the typhus, cholera, smallpox and Spanish influenza broke out, causing the death of many people. In 1915, Croats made up 34% of Austro-Hungarian Navy personnel. Apart from the Navy, Dalmatians also fought in land units, namely in the 22nd Imperial Regiment, 23rd Zadar Imperial Home Guard Regiment, 37th Dubrovnik Imperial Regiment and the Dalmatian Mounted Rifles. Following the Italian announcement of war, Croats were mostly sent to fight on fronts against Italy because the government expected them to be motivated to fight against those who mistreated them in the past. As the war ceased, there were also cases of defection, and in February 1918 the rebellion of sailors in the Bay of Kotor broke out. In 1917, representatives of Dalmatia in Imperial Council headed by Vjekoslav Spinčić, Josip Smodlak and Ivo Prodan, wrote the May Declaration, in which they presented a program of unification of all South Slavs within the Austria-Hungary that had to be divided into three equal parts - Austria, Hungary, and Croatia. At the end of the war, the National Council for Dalmatia