Britain Joins the Russo-Japanese War

Let's say the Dogger Bank incident is worse and Britain declares war on Russia. Assuming the War in the East remains equally if not more catastrophic for the Russians, what would be the course of a war in Europe. Obviously any future Triple Entente would be dead in the water, but could a British intervention lead to a wider war in Europe? If not would there be a better or worse chance that the Revolution of 1905 would succeed? What would be the longstanding consequences?
 
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