It was a call to war for the United States to attack Spain in retaliation of the bombing and destruction of the USS Maine.
Explanation:
United State Ship (USS) Maine was a naval warship that was destroyed at the harbour of Havana in February 1898. It was generally believed that the Spain was responsible for the destruction of the ship.
Mary Elizabeth Lamb's 'Awake United State' which was released sometime between the destruction of the USS Maine in February 1898 and the actual declaration of war in April 1898, was a call to battle for the United States to attack Spain in retaliation for the destruction of the USS Maine.
The US invaded Cuba in April 1898 in what began the Spanish-American war.
