The Manassas Campaign

The Manassas Campaign was a series of military engagements in the Eastern Theater of the War. It was the Union's first major concentrated effort against Confederate forces. It ended in failure for the Union at the Battle of Bull Run, Virginia on July 21, 1861.
* Dyer also refers to this campaign as (McDowell's) Advance on Manassas
== Union Order of Battle ==
* 1st Connecticut Infantry
* 2nd Connecticut Infantry
* 3rd Connecticut Infantry
* 2nd Maine Infantry
* 3rd Maine Infantry
* 4th Maine Infantry
* 5th Maine Infantry
* 1st Massachusetts Infantry
* (I) 5th Massachusetts Infantry
* 11th Massachusetts Infantry
* (I) 1st Michigan Infantry
* 2nd Michigan Infantry
* (I) 3rd Michigan Infantry
* (I) 4th Michigan Infantry
* 1st Minnesota Infantry
* 2nd New Hampshire Infantry
* (I) 1st New Jersey Infantry (as 1st New Jersey Militia Infantry)
* (I) 2nd New Jersey Infantry (as 2nd New Jersey Militia Infantry)
* (I) 3rd New Jersey Infantry (as 3rd New Jersey Militia Infantry)
* (I) 4th New Jersey Infantry (as 4th New Jersey Militia Infantry)
* (II) 1st New Jersey Infantry
* (II) 2nd New Jersey Infantry
* (II) 3rd New Jersey Infantry
* (II) 4th New Jersey Infantry
* 3rd New York (Independent) Light Artillery BatteryNot originally referenced on Dyer summary, but referenced on unit homepage
* 8th New York State Militia Infantry
** Bookwood's (Independent) Light Artillery Battery
* 69th New York State Militia Infantry
* 71st New York State Militia Infantry
* 8th New York Infantry
* 11th New York Infantry
* (I) 12th New York Infantry
* (I) 13th New York Infantry
* 14th New York Infantry
* 16th New York Infantry
* 18th New York Infantry
* 27th New York Infantry
* 29th New York Infantry
* 31st New York Infantry
* 32nd New York Infantry
* 38th New York Infantry
* 39th New York Infantry
* 41st New York Infantry
* 79th New York Infantry
* 82nd New York Infantry
* (I) 1st Ohio Infantry
* (I) 2nd Ohio Infantry
* 27th Pennsylvania Infantry
* 1st Rhode Island Light Artillery / Battery A
* 1st Rhode Island Infantry
* 2nd Rhode Island Infantry
* 2nd Vermont Infantry
* 2nd Wisconsin Infantry
* 1st United States Cavalry (Companies A and E)
* 2nd United States Cavalry (Companies B/E/G/I)
* 2nd United States DragoonsIs this unit the 2nd United States Cavalry / Company K?
* 1st United States Artillery / Battery G
* 1st United States Artillery / Battery I
* 2nd United States Artillery / Battery A
* 2nd United States Artillery / Battery D
* 2nd United States Artillery / Battery E
* 2nd United States Artillery / Battery G
* 2nd United States Artillery / Battery M
* 3rd United States Artillery / Battery E
* 2nd United States Infantry / Companies C and G
* 3rd United States Infantry / Companies B/D/G/H/K
* 8th United States Infantry / Company G
* https://en.wikipedia.org/wiki/First_Bull_Run_Union_order_of_battle
== Confederate Order of Battle == 
* https://en.wikipedia.org/wiki/First_Bull_Run_Confederate_order_of_battle
== Casualties ==
== Sub-Operations ==
* July 17, 1861 - Occupation of Fairfax Court House, Virginia
* July 18, 1861 - Skirmish at Blackburn's/McLean's/Mitchell's Fords, Virginia 
* July 19, 1861 - Affair at Back River Road, Virginia 
* July 21, 1861 - Battle of Bull Run, Virginia
== Sources ==
* (Pages 603, 631, 888, 894)
* https://en.wikipedia.org/wiki/Manassas_Campaign
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