Mine will be more-so tidbits of history from each unit:
30th VA Volunteer Infantry:It was assigned to General J.G. Walker's and Corse's Brigade, and fought with the Army of Northern Virginia from the Seven Days' Battles to Fredericksburg. After serving with Longstreet at Suffolk, it was on detached duty in Tennessee and North Carolina. During the spring of 1864 the 30th returned to Virginia and saw action at Drewry's Bluff and Cold Harbor. Later it endured the hardships of the Petersburg trenches north and south of the James River and ended the war at Appomattox.
It reported 1 killed and 4 wounded at Malvern Hill and 39 killed and 121 wounded in the Maryland Campaign. Many were lost at Five Forks and Sayler's Creek, and on April 9, 1865, it surrendered with 8 officers and 82 men.
The 30th VA is mostly known for moving through the cornfields at Antietam (Sharpsburg) and faced against 3 Union lines in a semi-circle. They suffered 65% casualties in 15 minutes.
Infanterie-Regiment 208 (79.Infanterie-Division):Assigned to the French-German border in the Saar region, the 79th trained and worked on the West Wall. The Division saw action against the French on the Saar Front on May 10, 1940 when they were a part of the invasion forces. In June, the division participated in attacks on the Maginot Line and the capture of Epinal. From June 1940 until April 1941, the division was on occupation duty and trained for Operation Sea Lion. The 79th was relocated to Klagenfurt in April 1941 but was too late for the invasion of Yugoslavia.
It was assigned to Heeresgruppe Süd for Operation Barbarossa on June 26, 1941. From June 1941 until September 1942 the 79th fought in southern Russia at Korosten, Lutsk, Rovno, Piryatin, and Akhtyrka, Kharkov, Voronezh, Izyum and Kalack before being sent in October 1942 to the Battle of Stalingrad.
The fighting in the Red October Tractor Factory was fiercely fought, hall by hall. When the Soviet Offensive started on November 19, 1942, the 79th was one of the units trapped in the "kessel" when they were surrounded on November 24. The Sixth Army surrendered on January 31, 1943. The division staff, including the Ia (Operations Officer) Oberst Hans Schwanbeck, were flown out of Stalingrad on January 8–9, 1943. The remainding forces were joined into the 305.ID until the surrender.
The 79th was quickly raised again by the surviving staff officers. On January 12, 1943, from remnants of other German units near Rostov. The division then took part in operations in the Novocherkassk area until relieved on March 13, 1943. They refitted in the Volnovakha area and in April 1943, returned to battle. They fought a number of defensive actions before reaching the Kuban Bridgehead in August 1943. The division was evacuated to the Ukraine and continued a slow movement west for almost a year.
1944 found the 79th in Romania as a part of IV Korps, 6. Armee. By August, the 79th was one of the divisions attempting to hold the city of Jassy. On August 23, 1944, with the Romanian coup, 79th was once again encircled and virtually annihilated near Chitcani, Romania on the Berlad River. Less than 1,000 soldiers managed to escape.
On October 27, 1944, the division was raised again outside of the Welle system, this time in West Prussia and now as the 79th Volksgrenadier Division (79. Volks-Grenadier-Division). It had only ten percent combat veterans and was largely made up by absorbing the 586th Volksgrenadier Division (Katzbach). On December 11, 1944, the 79th Volsgrenadier Division was assigned to 7. Armee a reserve force near Bitburg, Germany. Though at half strength, the 79th was to take part in Operation Herbstnebel.
On December 21, 1944, the 79th VG towards its assembly area near Diekirch, Luxembourg. On December 24, 1944, the Volksgrenadiers in conjunction with the Führer Grenadier Brigade, launched a series of attacks against the Blue Ridge Division, the 80th Infantry Division (United States). The objective was to seize the town of Heiderscheid, a strategic bridge crossing along the Sure River. Both units suffered very heavy losses, particularly when on December 26 most of the 79th VG artillery and FGB armor was destroyed by American fighter bombers. The 79th VG begin falling back, unable to hold against the US 80th Infantry Division, towards the town of Baunscheid, to hold another strategic bridgehead there.
After Heavy fighting continued in to January 1945, the Division fell to U.S. forces at Heidelberg and Darmstadt. Remains of the 79th fought in the vicinity of Rothenburg ob der Tauber under the name Battle Group (Kampfgruppe) "Hummel" in mid-April. This last organized unit of the 79th Volksgrenadier Division surrendered to US Forces on April 14, 1945. Grenadiers of the 79th Volksgrenadier Division fought small unit actions in the Alps.
Infanterie-Regiment Nr. 124 "König Wilhelm I" (6.Württembergisches) (27.Division)The division served on the Western Front. In 1914, it fought in the Allied Great Retreat. It fought in the Battle of the Somme in 1916 and the Battle of Arras in 1917. The division served in the 1918 German Spring Offensive and the subsequent Allied counteroffensives, including the Hundred Days Offensive and the Meuse-Argonne Offensive. Allied intelligence rated the division as one of the very best German divisions and described it as a first class shock unit.
I would post more about the unit and where they fought in detail, but they were moved around a lot and were reconstituted so often the list of battles is quite large. More so than my WWII unit. However, the regiment I portray is where Erwin Rommel started the war and his career as a lieutenant before serving with the Alpenkorps in the middle of the war.
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I posted a lot of this from Wikipedia.