After the occupation of Latvia by the USSR in June 1940, much of the previous Latvian army was disbanded and many of its soldiers and officers were arrested and imprisoned or executed.
On June 16, 1940, Vyacheslav Molotov presented the Latvian representative in Moscow with an ultimatum accusing Latvia of violations of that pact.
Rigged elections for a "People's Saeima" were held, and a puppet government headed by Augusts Kirhenšteins led Latvia into the USSR.
After the German attack on the Soviet Union, from June 29 to July 1 more than 2,080 Latvian soldiers were demobilised, fearing that they might turn their weapons against the Russian commissars and officers.
Comprising the 16th and 18th Armies and 4th Panzer Group, this formation drove through Lithuania, Latvia, Estonia and the cities of Russian SFSR of Pskov and Novgorod.
In 1941 empowered by the Einsatzgruppen and Nazi war criminal Franz Walter Stahlecker the far-right-wing extremist group of 500 Arajs Kommando led by Viktors Arājs participated in the Holocaust.
Panzers of Hyazinth Graf Strachwitz von Gross-Zauche und Camminetz had been sent back to the capital of Ostland, Riga and in ferocious defensive battles had halted the Soviet advance in late April, 1944.
A massive Soviet assault sliced through the German lines and Army Group North was completely isolated from its neighbour.
The 101.Panzerbrigade was now assigned to the army detachment "Narwa at the Emajõgi River Front in Estonia, bolstering the defenders' armour strength.
They were senselessly stuck there; the Red Army naturally did not pay much attention while concentrating its men and weapons on the attacks on East Prussia, Silesia, Pomerania, and ultimately Berlin.
Colonel-General Heinz Guderian, the Chief of the German General Staff, insisted to Adolf Hitler that the troops in Courland should be evacuated by sea and used for the defense of the Reich.
Many soldiers evaded capture and joined the Forest Brothers resistance that waged unsuccessful guerilla warfare for several years.