Why did a stalemate develop from the outset of World War I?

Explanation:

Well, there was really nothing happening, as basic knowledge allows the Trench warfare was brutal and often repetitive thousands of men mowed down like grass on a sunday morning by Machine guns. A stalemate was made because neither side can really advance without losing hundreds of thousands of men...-Dead.

1) union forces launched a surprise attack.

2) more confederate troops arrived by train.

3) union forces retreated.

southerners, for their part, considered brown a terrorist. they felt threatened by northerners' deification of brown and worried about the potential for other, similar armed insurrections.

explanation: