Don River in the context of "Antae"

Case Blue (German: Fall Blau) was the Wehrmacht's plan for the 1942 strategic summer offensive in southern Russia between 28 June and 24 November 1942, during World War II. The objective was to capture the oil fields of Baku (Azerbaijan SSR), Grozny and Maikop for two purposes: to enable the Germans to re-supply their low fuel stock and also to deny their use to the Soviet Union, thereby bringing about the complete collapse of the Soviet war effort.

After Operation Barbarossa failed to destroy the Soviet Union as a political and military threat the previous year, Adolf Hitler, the Führer of Nazi Germany, recognized that Germany was now locked in a war of attrition, and he was also aware that Germany was running low on fuel supply and would not be able to continue attacking deeper into enemy territory without more stock. With this in mind, Hitler ordered for the preparation of offensive plans for summer 1942 to secure the Soviet oil fields in the Caucasus. The operation involved a two-pronged attack: one from the Axis right flank against the oil fields of Baku, known as Operation Edelweiss, and one from the left flank to protect the first attack, moving in the direction of Stalingrad along the Don River, known as Operation Fischreiher.

The Wielbark culture (German: Wielbark-Willenberg-Kultur; Polish: Kultura wielbarska) is an Iron Age archaeological complex that flourished on the territory of today's Poland from the 1st century to the 5th century.

The Wielbark culture is associated with the Goths and related Germanic peoples, and played an important role in the Amber Road. It displays cultural links not only with its neighbours, but also with southern Scandinavia. The Wielbark culture replaced the preceding Oksywie culture on the lower Vistula in the 1st century, and subsequently expanded southwards at the expense of the Przeworsk culture, which is associated with the Vandals. This expansion has been associated by historians such as Peter Heather with the contemporary Marcomannic Wars. By the late 3rd century, the Wielbark culture had expanded into the area of the upper Dniester, where it possibly influenced the Chernyakhov culture to its south, which encompassed a large area between the Danube and the Don River.

The Antes or Antae (Greek: Ἄνται) were an early Slavic tribal polity of the 6th century CE. They lived on the lower Danube River, in the northwestern Black Sea region (present-day Moldova and central Ukraine), and in the regions around the Don River (in Middle and Southern Russia). Scholars commonly associate the Antes with the archaeological Penkovka culture.

First mentioned in the historical record in 518, the Antes invaded the Eastern Roman Empire in the area of the Diocese of Thrace sometime between the years of 533 and 545. Thereafter, they became Byzantine foederati and received gold payments and a fort (named "Turris" – the Latin word turris means 'tower') somewhere north of the Danube at a strategically important location to prevent hostile barbarians from invading Roman lands. Thus from 545 to the 580s, Antean soldiers fought in various Byzantine campaigns. The Pannonian Avars, the Bulgars and the Khazars attacked the Antes in the 7th century, causing disappearance of the Antes as a group and of the Penkovka culture phenomenon.

The Azov campaigns of 1695–1696 (Russian: Азо́вские похо́ды, romanized: Azovskiye Pokhody) were two Russian military campaigns during the Russo-Turkish War of 1686–1700, led by Peter the Great and aimed at capturing the Turkish fortress of Azov (garrison – 7,000 men) with the aim of controlling the southern mouth of the Don River gaining access to the Sea of Azov and entrance to the Black Sea. Despite stubborn resistance and heavy casualties, the Russians under General Sheremetev after a failed siege in 1695 managed to capture the fort, accompanied by a naval force, in July 1696, marking the first major Russian victory against the Turks.