They sent masses of peasant soldiers into combat, some unarmed. Option B is correct.
In 1904, the Japanese Navy launched a onrush on the Russian fleet at Port Arthur, which resulted in the war outbreak. The Russian Navy combated in two battles of paramount impotance and relieve Port Arthur even thought the Russians were defeated and compelled to withdraw. In May 1905, the Russian Navy was attacked at Tsushima.
Ending slavery immediately would have had a devastating effect on the economy which had become dependent on cheap slave labor. It would have also motivated the South to secede. The slaves would have also been left without an immediate source of sustenance.
