** Battle of Lingones — Caesar Constantius Chlorus defeats the Alemanni

Later in 298, Constantius fought in the Battle of Lingones ( Langres ) against the Alamanni.

* Battle of Lingones 298

* 298, Battle of Lingones.

** Battle of Vindonissa — Constantius again defeats the Alemanni

Constantius promptly attacked Narses, and after suffering minor setbacks defeated and killed Narses at the Battle of Narasara.

In 353, Constantius and Magnentius met for what would be the final time at the Battle of Mons Seleucus in southern Gaul, and again, Constantius emerged the victor.

Silvanus had surrendered to Constantius after the Battle of Mursa Major.

After the defeat and death of Magnentius in the Battle of Mons Seleucus in 353, Constantius II dispatched his chief imperial notary Paulus Catena to Britain to hunt down Magnentius ' supporters.

* 351 – Battle of Mursa Major: the Roman Emperor Constantius II defeats the usurper Magnentius.

* Battle of Vindonissa: Constantius I defeats at Vindonissa ( modern Switzerland ) the Alamanni.

* Battle of Mons Seleucus: Emperor Constantius II defeats the usurper Magnentius, who commits suicide in Gaul in order to avoid capture.

* September 28 – Battle of Mursa Major: Constantius II defeats the usurper Magnentius along the valley of the Drava.

* Battle of Singara: The Roman army under Emperor Constantius II is barely victorious at the strongly fortified city of Singara ( Mesopotamia ).

The ensuing Battle of Mursa Major resulted in a costly victory for Constantius.

After electing Magnus Decentius ( probably his brother ) to Caesar and gathering as many troops as possible, the armies of Magnentius and Constantius met in the Battle of Mursa Major in 351 ; Magnentius led his troops into battle, while Constantius spent the day of battle praying in a nearby church.

The West was unified in 340 under Constans, who was assassinated in 350 under the order of the usurper Magnentius ; after Magnentius lost the Battle of Mursa Major and committed suicide, a complete reunification of the whole Empire occurred in 353, with Constantius II.

The Battle of Adrianople in 378, the death of Theodosius I in 395 ( the last time the Roman Empire was politically unified ), the crossing of the Rhine in 406 by Germanic tribes, the execution of Stilicho in 408, the sack of Rome in 410, the death of Constantius III in 421, the death of Aetius in 454, the second sack of Rome in 455, and the death of Majorian in 461 are emphasized by various historians.

* 1395 – Tokhtamysh – Timur war: Battle of the Terek River: Timur defeats Tokhtamysh of the Golden Horde at the Volga.

* 313 – Battle of Tzirallum: Emperor Licinius defeats Maximinus II and unifies the Eastern Roman Empire.

* 851 – Battle of Jengland: Erispoe defeats Charles the Bald near the Breton town of Jengland.

* 1813 – French Emperor Napoleon I defeats a larger force of Austrians, Russians, and Prussians at the Battle of Dresden.

* 48 BC – Caesar's Civil War: Battle of Pharsalus – Julius Caesar decisively defeats Pompey at Pharsalus and Pompey flees to Egypt.

* 1862 – American Civil War: Battle of Cedar Mountain – At Cedar Mountain, Virginia, Confederate General Stonewall Jackson narrowly defeats Union forces under General John Pope.

* 216 BC – Second Punic War: Battle of Cannae – The Carthaginian army led by Hannibal defeats a numerically superior Roman army under command of consuls Lucius Aemilius Paullus and Gaius Terentius Varro.

* 881 – Battle of Saucourt-en-Vimeu: Louis III of France defeats the Vikings, an event celebrated in the poem Ludwigslied.

* 1592 – Imjin War: Battle of Hansan Island Admiral Yi Sun-sin decisively defeats the Japanese Navy at Hansan Island.

* 259, Battle of Mediolanum — Emperor Gallienus defeats the Alemanni to rescue Rome

** Battle of Fano — Aurelian defeats the Alemanni, who begin to retreat from Italy

* 1914 – World War I: Battle of Stallupönen – The German army of General Hermann von François defeats the Russian force commanded by Paul von Rennenkampf near modern-day Nesterov, Russia.

* 1164 – Battle of Harim: Nur ad-Din Zangi defeats the Crusader armies of the County of Tripoli and the Principality of Antioch.

* 1687 – Battle of Mohács: Charles of Lorraine defeats the Ottoman Empire.

* 1758 – Seven Years ' War: Frederick II of Prussia defeats the Russian army at the Battle of Zorndorf.

* 489 – Theodoric, king of the Ostrogoths defeats Odoacer at the Battle of Isonzo, forcing his way into Italy.

* 1914 – World War I: the Royal Navy defeats the German fleet in the Battle of Heligoland Bight.

* 1350 – Battle of Winchelsea ( or Les Espagnols sur Mer ): The English naval fleet under King Edward III defeats a Castilian fleet of 40 ships.

* 1864 – Battle of Dybbøl: A Prussian-Austrian army defeats Denmark and gains control of Schleswig.

* 1014 – Battle of Clontarf: Brian Boru defeats Viking invaders, but is killed in battle.

* 1521 – Battle of Villalar: King Charles I of Spain defeats the Comuneros.

* 43 BC – Battle of Forum Gallorum: Mark Antony, besieging Julius Caesar's assassin Decimus Junius Brutus Albinus in Mutina, defeats the forces of the consul Pansa, who is wounded.

* 69 – Vitellius, commander of the Rhine armies, defeats Emperor Otho in the Battle of Bedriacum and seizes the throne.