The Macedonian Succession Wars, more commonly referred as the Wars of the Diadochi, were a series of conflicts fought between the former companions and generals of Alexander the Great after his death from 322 to 281 BCE. By the end of Alexander's life, these influential and powerful figures were promised to, by virtue of their ranks as well as their deeds and personal relationship with their king, positions of power and prestige that only Alexander himself or his heir could grant them. However, Alexander's son was not yet born and his brother had a mental disability that made him unsuitable to inherit Alexander's empire. As a result, Alexander's generals had to appoint themselves to the position they coveted and without a legitimate or capable figure of authority to lead them they eventually either acted out their ambition and lust for power or defended themselves against belligerent rivals and former brothers-in-arms which ultimately led to the disintegration of Alexander's empire. Figures of note during this period are Craterus, Seleucus, Antipater, Antigonus, Ptolemy, Eumenes, Pyrrhus and many more.
The Punic Wars outline a period characterised by three separate conflicts opposing Rome and Carthage between 264 and 146 BCE. The casus belli for the first war was hegemony over Sicily and the casus belli of the following two wars was hegemony over the Mediterranean Sea. Rome won all three wars, even though both Rome and Carthage losses were colossal. Despite this detriment, the conclusion of the Punic Wars laid the foundation of the Roman Empire. Figures of note during this period are Hannibal Barca, Scipio Africanus, Gaius Marius, Xanthippus and many more.
The Three Kingdoms of China is a bloody and chaotic period in chinese history that lasted 60 years, from 220 to 280 CE, starting with the fall of the centuries old Han dynasty and ending with the establishment of the Jin dynasty. It was characterized with the fragmentation of China into three kingdoms, which were the Shu-Han kingdom in the South-West, the Sun-Wu kingdom in the South-East and the Cao-Wei kingdom in the North, after decades of civil war as well as widespread government corruption and neglection. Figures of note during this period are Cao Cao, Sun Quan, Liu Bei, Sima Yi, Zhuge Liang, Guan Yu and many more.
The Hundred Years' War is a bloody chapter of England and France's history punctuated with many wars opposing them and during which England, first, attempted to claim France's throne, then to keep their French holdings and finally, after loosing most of them, to retake these holdings. This period saw the use of cannons for the first time in European and Mediterranean history and the decline of the medievalistic usage of cavalry. Figures of note during this period are Jeanne d'Arc, Bertrand du Guesclin, John Talbot, Edward the Black Prince, Henry IV the victor of Agincourt, and many more.
The Warring States of Japan is an umbrella term that covers a 150 years long period of japanese history, starting with the Ōnin War in 1465 with the birth of Ashikaga Yoshihisa and ending with the death of Toyotomi Hideyori in 1615. During this period the government of Japan was severely weakened, which allowed state governors or dukes known as daimyō to gain an unprecedented level of independence. This had the unavoidable consequence of hindering the government's ability to curtail their growing ambition which led to many wars over the control of territories and personal feuds. Figures of note during this period are Oda Nobunaga, Toyotomi Hideyoshi, Tokugawa Ieyasu, Sanada Yukimura, Takeda Shingen, Uesugi Kenshin and many more.
The Russo-Ukrainian War is an ongoing conflict since 2014 and was triggered by a coup-d'état that saw the pro-russian president, Viktor Yanukovych, ousted from his position and the resoluteness of the government that took his place to pursue closer ties with the European Union and the United States. Given NATO's persistent expansion towards Russia's borders through the years, which allows the americans in particular to deploy their military assets inside any member country, as well as the central role the american government played in the overthrow of president Yanukovych, Vladimir Putin ordered on February 24 2022 the invasion of Ukraine that he labeled as a special military operation. Russia's main objectives are to assimilate the Donbas region (and probably more) and to overthrow what it views as an illegitimate and oppressive ukrainian government.