How was the battle of wilderness and the battle of spotsylvania and the battle of cold harbor related?

Cold Harbor Summary: The Battle of Cold Harbor occurred May 31–June 12, 1864, just outside of the Confederate capitol of Richmond, Virginia, during the American Civil War. Cold Harbor was the final battle of Lieutenant General Ulysses S. Grant’s Overland Campaign, which began in early May 1864 with the Battle of the Wilderness. The main part of the Battle of Cold Harbor was a frontal assault on Confederate lines that ended in nearly 7,000 Union casualties after less than an hour—by some accounts most were lost in as little as 10 minutes. It was one of the most brutal confrontations of the war.

The League of Nations was established at the end of World War I as an international peacekeeping organization. Although US President Woodrow Wilson was an enthusiastic proponent of the League, the United States did not officially join the League of Nations due to opposition from isolationists in Congress.

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