What would happen if the 70,000 soldiers of the Confederate Army in the South, under the command of Robert E. Lee, surrounded the70,000 Union Army led by General McLellan in DC and forced them to surrender

It is impossible to accurately predict what would have happened in this scenario as it is purely hypothetical. However, we can make some assumptions based on historical knowledge.

If the Confederate Army had successfully surrounded and forced the Union Army to surrender in Washington D.C., it would have been a major victory for the Confederacy. This would have likely boosted their morale and strengthened their position in the war. It is possible that this victory could have led to foreign recognition and support for the Confederacy, which they were seeking throughout the war.

On the other hand, the surrender of the Union Army in the capital would have been a significant blow to the Union cause. It would have left the North vulnerable to further Confederate attacks and could have led to the collapse of the Union government. The Confederacy would have likely tried to negotiate a peace treaty with the North, possibly resulting in the recognition of the Confederacy as a separate nation.

However, it is important to note that this scenario is highly unlikely. The Confederate Army was never able to muster enough forces to effectively capture Washington D.C., and the Union Army was able to defend the capital throughout the war. Additionally, McLellan was not in command of the Union Army during any major battles in Washington D.C., so this scenario is not historically accurate.