Complex sentence: Feth-i-Bulend was launched as an attempt to modernize the Turkish Navy in the 1860's and 1870's to protect them agians the Russian Expansionist Programme.
Split into simpler sentences: Feth-i-Bulend was built as one of the ships constructed to attempt the modernization of the Turkish Navy. This programme took place in the 1860's and 1870's to protect them agianst the Russian Expansionist Programme.