Complex sentence: These efforts incurred the wrath of Tsar Nicholas II, and Izvolsky was transferred to Copenhagen from 1903, and from that post continued to press for a diplomatic settlement with Japan before and during the Russo-Japanese War of 1904-1905.
Split into simpler sentences: These efforts incurred the wrath of Tsar Nicholas II, and Izvolsky found himself transferred to Copenhagen from 1903. From that posting he continued to press for a diplomatic settlement with Japan before and during the Russo-Japanese War of 1904-1905.