Jubal Early's army was a threat to the North because they made a raid and were about to take Washington D.C.
Jubal Anderson Early (1816 - 1894) was a military leader of the American Confederacy noted for being an opponent of secession. Nonetheless, he supported his home state Virginia once the War began.
When he joined the army he had the position of Colonel and participated in the battles of:
- First and second battle of Bull Run
- Battle of Antietam
- Battle of Fredericksburg
- Battle of Chancellorsville
- Battle of Gettysburg.
- Battle of the Wilds
- Battle of Spotsylvania
Early stood out for commanding the Confederate forces towards the Shenandoah Valley in 1864. In this dispute they were a great threat to the Union because they were about to take Washington DC, but were defeated by Union troops commanded by Philip Sheridan.
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If you're referring to new non-European states that have risen since the Cold War Ended, then the effect has perhaps been minimal in terms of their daily lives, but if they have close relations with the US it would mean a stronger connection.
