Learn on PengiIMPACT California Social Studies, Grade 8Chapter 15: The Civil War

Lesson 1: The Two Sides

In this Grade 8 lesson from IMPACT California Social Studies, students examine the contrasting strengths, weaknesses, goals, and strategies of the Union and Confederacy at the start of the Civil War. Using a Venn diagram, students compare the two sides across key factors including population, resources, military leadership, and geographic advantages, while also analyzing the critical role of the border states in Union strategy. Primary sources from Stonewall Jackson and Abraham Lincoln give students direct insight into how leaders on both sides understood the stakes of the conflict.

Section 1

Union Secures the Border States

Key Idea

Four slave states—Delaware, Maryland, Kentucky, and Missouri—chose not to secede from the Union. These border states became critical territories that both the North and South wanted to control. President Lincoln knew that keeping them in the Union was essential for the war effort.

Their location provided major strategic advantages. Maryland surrounded the U.S. capital, Washington D.C., and its loss would have been devastating. Kentucky and Missouri controlled key parts of the Ohio and Mississippi Rivers, which were vital transportation routes for troops and supplies.

Section 2

Each Side Wielded Unique Advantages

Key Idea

At the start of the war, the Union appeared much stronger on paper. It had a larger population, which meant more potential soldiers. The North also controlled most of the nation's factories, railroads, and wealth, giving it a huge resource advantage.

The Confederacy, however, had its own key strengths. It possessed a strong tradition of military leadership, with many experienced officers joining its side. The South also planned to fight a defensive war on its own familiar territory, which could wear down the Northern will to fight.

Section 3

Lincoln Defines the Union's Goal

Key Idea

When the Civil War began, President Abraham Lincoln’s main goal was not to end slavery. His primary mission was the preservation of the Union—to hold the United States together as one nation.

This focus was also a critical political strategy. By emphasizing unity over abolition, Lincoln hoped to keep the crucial border states from seceding. These slave-holding states were vital to the Union's war effort, and losing them could have tipped the balance in favor of the Confederacy.

Section 4

Union Strategy: The Anaconda Plan

Key Idea

The Union entered the war with more people, factories, and resources. To use this advantage, leaders developed a strategy nicknamed the Anaconda Plan. The idea was to surround the Confederacy and squeeze it like a giant snake, cutting off its ability to fight.

The plan had three main goals. First, the powerful Union navy would blockade Southern ports to stop all trade. Second, the army would seize control of the Mississippi River, splitting the South in two. Finally, Union forces would capture the Confederate capital at Richmond, Virginia.

Lesson overview

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Section 1

Union Secures the Border States

Key Idea

Four slave states—Delaware, Maryland, Kentucky, and Missouri—chose not to secede from the Union. These border states became critical territories that both the North and South wanted to control. President Lincoln knew that keeping them in the Union was essential for the war effort.

Their location provided major strategic advantages. Maryland surrounded the U.S. capital, Washington D.C., and its loss would have been devastating. Kentucky and Missouri controlled key parts of the Ohio and Mississippi Rivers, which were vital transportation routes for troops and supplies.

Section 2

Each Side Wielded Unique Advantages

Key Idea

At the start of the war, the Union appeared much stronger on paper. It had a larger population, which meant more potential soldiers. The North also controlled most of the nation's factories, railroads, and wealth, giving it a huge resource advantage.

The Confederacy, however, had its own key strengths. It possessed a strong tradition of military leadership, with many experienced officers joining its side. The South also planned to fight a defensive war on its own familiar territory, which could wear down the Northern will to fight.

Section 3

Lincoln Defines the Union's Goal

Key Idea

When the Civil War began, President Abraham Lincoln’s main goal was not to end slavery. His primary mission was the preservation of the Union—to hold the United States together as one nation.

This focus was also a critical political strategy. By emphasizing unity over abolition, Lincoln hoped to keep the crucial border states from seceding. These slave-holding states were vital to the Union's war effort, and losing them could have tipped the balance in favor of the Confederacy.

Section 4

Union Strategy: The Anaconda Plan

Key Idea

The Union entered the war with more people, factories, and resources. To use this advantage, leaders developed a strategy nicknamed the Anaconda Plan. The idea was to surround the Confederacy and squeeze it like a giant snake, cutting off its ability to fight.

The plan had three main goals. First, the powerful Union navy would blockade Southern ports to stop all trade. Second, the army would seize control of the Mississippi River, splitting the South in two. Finally, Union forces would capture the Confederate capital at Richmond, Virginia.