Battle of the Yellow Sea
10 August 1904, Yellow Sea, off Shandong
Japanese victory; Russian breakout fails
Ordered to break out of Port Arthur for Vladivostok, the Russian squadron fought Togo's fleet for most of the day. Late in the action a shell struck Tsesarevich's bridge, killing Admiral Vitgeft and jamming her helm; the Russian line fell apart. Most ships turned back to Port Arthur, and several others ran for neutral ports and were interned.
Read more on WikipediaImperial Japanese Navy
33+ ships, none lost
Imperial Russian Navy
15+ ships, 1 lost
Map
Port Arthur squadron breaks out 10 August 1904
Main body turns back to Port Arthur 10–11 August 1904
Tsesarevich to Kiaochow 10–11 August 1904
Askold to Shanghai 10–12 August 1904
Diana to Saigon August 1904