 Although the state inherited much of Austro-Hungary's military arsenal, including the entire fleet, the Kingdom of Italy moved rapidly to annex the state's most western territories, promised to her by the Treaty of London of 1915.An Italian Army eventually took Istria, started to annex the Adriatic islands one by one, and even landed in Zadar.Partial resolution to the so-called Adriatic Question would come in 1920 with the Treaty of Rapallo.