What historical events are shown on the smaller map at the bottom?

The smaller map at the bottom shows historical events related to military actions, including:

• Directions of action of Russian and Turkish troops.
• Siege of cities by Russian troops.
• Heroic defense of the Shipka Pass (1877-1878).
• The map also indicates significant dates and locations such as Constantinople (Istanbul), San Stefano, and the Sea of Marmara in 1878.
• Additionally, it shows movements and locations related to the Russo-Japanese War, such as Port Arthur (Lüshunkou), Dalian (Dalin), the Battle of Yalu River, and the Battle of Mukden.