what two ways did the Union's aims for fighting the Civil War differ from the Confederacy's aims?

The Union wanted to abolish the practice of slavery, while the Confederacy wanted slavery to continue.

The Union wanted to protect national sovereignty, while the Confederacy wanted to protect state sovereignty.

Between April 1861 and April 1865, an estimated 1.5 million troops joined the war on the side of the Union and approximately 1.2 million went into Confederate service. An estimated total of 600,000 were killed in action or died of disease. More than twice that number were wounded but survived at least long enough to muster out