Timeline of the Russo-Japanese War

Russo-Japanese War
	; Clockwise from top: Russian cruiser Pallada under fire at Port Arthur, Russian cavalry at Mukden, Russian cruiser Varyag and gunboat Korietz at Chemulpo Bay, Japanese dead at Port Arthur, Japanese infantry crossing the Yalu River
Date	8 February 1904 – 5 September 1905 (1 year, 6 months and 4 weeks)
Location	Manchuria, Yellow Sea, Korea, Sea of Japan
Result	Japanese victory
Territorial; changes	Russia cedes Port Arthur and Dalniy in the Liaodong peninsula, Southern Sakhalin, and the control of the South Manchuria Railway to Japan Kvantunskaya Oblast and Southern Sakhalin become Kwantung Leased Territory and Karafuto Prefecture respectively; ;
Belligerents
Russia;	Japan;
Commanders and leaders
Nicholas II; Aleksey Kuropatkin; Roman Kondratenko †; Anatoly Stessel ; Oskar Gripenberg; Mikhail Zasulich; Yevgeni Alekseyev; Stepan Makarov †; Wilgelm Vitgeft †; Robert Viren; Zinovy Rozhestvensky;	Emperor Meiji; Katsura Tarō; Ōyama Iwao; Kodama Gentarō; Nogi Maresuke; Kuroki Tamemoto; Oku Yasukata; Terauchi Masatake; Tōgō Heihachirō; Itō Sukeyuki; Kamimura Hikonojō;
Strength
1,365,000 (total) 900,000 (peak);	1,200,000 (total) 650,000 (peak);
Casualties and losses
Total: 43,300–71,453 dead 34,000–52,623 killed or died of wounds; 9,300–18,830 died of disease; 146,032 wounded; 74,369 captured; Material losses: 8 battleships sunk; 2 battleships captured;	Total: 80,378–99,000 dead 47,152–47,400 killed; 11,424–11,500 died of wounds; 21,802–27,200 died of disease; 153,673–173,400 wounded; Material losses: 2 battleships sunk;

This is a chronological timeline of the Russo-Japanese War; covers the period from the outbreak of the war in February 1904 to the signing of the Treaty of Portsmouth in September 1905. The timeline includes major battles, naval engagements, and significant events that shaped the course of the conflict.