Delaware, Kentucky, Maryland, and Missouri were called border states during the Civil War. This is because they were slave states that remained part of the Union.
Delaware, Maryland, Kentucky, and Missouri are the four border states of the North and South. (West Virginia is also a border state)
North Dakota, South Dakota, Wyoming, and Idaho are the four states which border the US state of Montana.
Border states refer to U.S. states that are geographically located along the boundaries or borders of other countries or territories. They often have unique cultural, economic, and political characteristics due to their proximity to neighboring regions. Examples include states like Texas, New Mexico, and California in relation to Mexico.
They were called border states
Missouri, Kentucky, West Virginia, Maryland, and Delaware were the five slaveholding border states.
That is called Four Corners, the only place in the US where four boundaries meet in this manner.|
Kentucky, Missouri, Maryland, Delaware.
California and Arizona
Tennessee, Florida, Alabama
Capital: Salem Four States: Washington, Nevada, Idaho, and California
There are more than two states that border Mexico, four do. California, Arizona, New Mexico, and Texas.