Religious war
Nolan described the wars' goals and character as follows: "The main aim of the Hussites was to prevent the hated Sigismund mounting the throne of Bohemia, but fighting between Bohemian Hussites and Catholics spread into Moravia. (...) cross-class support gave the Hussite Wars a tripartite and even 'national' character unusual for the age, and a religious and social unity of purpose, faith, and hate". Winkler Prins/Encarta (2002) described the Hussites as a "movement which developed from a religious denomination to a nationalist faction, opposed to German and Papal influence; in the bloody Hussite Wars (1419–1438), they managed to resist." It did not mention the succession of Wenceslaus by Sigismund, but noted elsewhere that it was Sigismund's policy of Catholic Church unity which prompted him to urge Antipope John XXIII to convene the Council of Constance in 1414, which ultimately condemned Jan Hus.

Soga–Mononobe conflict: Buddhism was formally introduced into Japan by missionaries from the kingdom of Baekje in 552. Adherents of the native Shinto religion resisted the spread of Buddhism, and several military conflicts broke out, starting with the Soga–Mononobe conflict (552–587) between the pro-Shinto Mononobe clan (and Nakatomi clan) and the pro-Buddhist Soga clan. Although the political power each of the clans could wield over the royal family was also an important factor, and was arguably a strategic reason for the Soga to adopt and promote Buddhism as a means to increase their authority, the religious beliefs from both doctrines, as well as religious explanations from events that happened after the arrival of Buddhism, were also causes of the conflict that escalated to war. Whereas the Soga argued that Buddhism was a better religion because it had come from China and Korea, whose civilisations were widely regarded as superior and to be emulated in Yamato (the central kingdom of Japan), the Mononobe and Nakatomi maintained that there should be continuity of tradition and that worshipping the native gods (kami) was in the best interest of the Japanese. Unable to reach a decision, Emperor Kinmei (r. 539–571) maintained Shinto as the royal religion, but allowed the Soga to erect a temple for the statue of Buddha. Afterwards, an epidemic broke out, which Shintoists attributed to the anger of the native gods to the intrusion of Buddhism; in reaction, some burnt down the Buddhist temple and threw the Buddha statue into a canal. However, the epidemic worsened, which Buddhists in turn interpreted as the anger of Buddha to the sacrilege committed against his temple and statue. Both during the 585 and 587 wars of succession, the opposing camps were drawn along the Shinto–Buddhist divide, and the Soga clan's victory resulted in the imposition of Buddhism as the Yamato court religion under the regency of Prince Shotoku.

Toltec religious wars: There have been several religious wars in the Toltec Empire of Mesoamerica (c. 980–1110) between devotees of Tezcatlipoca and followers of Quetzalcoatl; the latter lost and were driven to flee to the Yucatán Peninsula.

Early modern period: 

European wars of religion: The term "religious war" was used to describe, controversially at the time, what are now known as the European wars of religion, and especially the then-ongoing Seven Years' War, from at least the mid 18th century. The Encyclopædia Britannica maintains that "[the] wars of religion of this period [were] fought mainly for confessional security and political gain".
In 16th-century France, there was a series of wars between Catholics and Protestants (Huguenots primarily), known as the French Wars of Religion. In the first half of the 17th century, the German states, Scandinavia (Sweden, primarily) and Poland were beset by religious warfare during the Thirty Years War. Catholicism and Protestantism figured on the opposing sides of this conflict, though Catholic France took the side of the Protestants, but it did so for purely political reasons.
In the late 20th century, a number of revisionist historians such as William M. Lamont regarded the English Civil War (1642–1651) as a religious war, with John Morrill (1993) stating: "The English Civil War was not the first European revolution: it was the last of the Wars of Religion." This view has been criticised by various pre-, post- and anti-revisionist historians. Glen Burgess (1998) examined political propaganda written by the Parliamentarian politicians and clerics at the time, noting that many were or may have been motivated by their Puritan religious beliefs to support the war against the 'Catholic' king Charles I of England, but tried to express and legitimise their opposition and rebellion in terms of a legal revolt against a monarch who had violated crucial constitutional principles and thus had to be overthrown. They even warned their Parliamentarian allies to not make overt use of religious arguments in making their case for war against the king. However, in some cases it may be argued that they hid their pro-Anglican and anti-Catholic motives behind legal parlance, for example by emphasising that the Church of England was the legally established religion: "Seen in this light, the defenses of Parliament's war, with their apparent legal-constitutional thrust, are not at all ways of saying that the struggle was not religious. On the contrary, they are ways of saying that it was." Burgess concluded: "[T]he Civil War left behind it just the sort of evidence that we could reasonably expect a war of religion to leave."

Ethiopian–Adal War: The Ethiopian–Adal War (1529–1543) was a military conflict between the Abyssinians and the Adal Sultanate. The Imam Ahmad ibn Ibrahim al-Ghazi came close to extinguishing the ancient realm of Abyssinia, and forcibly converting all of its surviving subjects to Islam. The intervention of the European Cristóvão da Gama attempted to help to prevent this outcome, but he was killed by al-Ghazi. However, both polities exhausted their resources and manpower in this conflict, allowing the northward migration of the Oromo into their present homelands to the north and west of Addis Ababa. Many historians trace the origins of hostility between Somalia and Ethiopia to this war.

Modern period: 

Greek War of Independence: The Greek War of Independence (1821–1829) has sometimes been considered a religious war between Christians and Muslims, especially in its early phase. The Greek Declaration of Independence (issued on 15 January 1822) legitimised the armed rebellion against the Ottoman Empire in a mix of religious and nationalist terms: "The war we are waging against the Turks, far from being founded in demagoguery, seditiousness or the selfish interests of any one part of the Greek nation, is a national and holy war (...). It is from these principles of natural rights and desiring to assimilate ourselves with our European Christian brethren, that we have embarked upon our war against the Turks." Scottish writer Felicia Skene remarked in 1877: "The Greek war of independence has never been called a religious war, and yet it had a better claim to that appellation than many a conflict which has been so named by the chroniclers of the past. It is a significant fact that the standard of revolt was raised by no mere patriot, but by Germanus, the aged Archbishop of Patras, who came forward, strong in his spiritual dignity (...) to be the first champion in the cause of Hellenic liberty." Ian Morris (1994) stated that "the uprising in 1821 was mainly a religious war", but that philhellene Western volunteers joined the war for quite different reasons, namely to 'regenerate' Greece and thereby Europe, motivated by Romantic ideas about European history and civilisation, and Orientalist views of Ottoman culture. The Filiki Eteria, the main organisation driving the rebellion, was split between two groups: one advocated the restoration of the Byzantine Empire on religious grounds, and to encourage all Christians within Ottoman territory to join the Greek revolutionaries; the other advocated the Megali Idea, a large Greek nation-state based on shared language rather than religion. Both of these grand objectives failed, but a smaller version of the latter goal was accepted by most members of the Eteria by 1823, and this goal was generally compatible with the motives of philhellenes who travelled to Greece to enter the war in 1821–1823.

Israeli–Palestinian conflict: The Israeli–Palestinian conflict can primarily be viewed as an ethnic conflict between two parties where one party is most often portrayed as a singular ethno-religious group which only consists of the Jewish majority and ignores non-Jewish minority Israeli citizens who support the existence of a State of Israel to varying degrees, especially the Druze and the Circassians who, for example, volunteer to serve in the IDF, participate in combat and are represented in the Israeli parliament in greater percentages than Israeli Jews are as well as Israeli Arabs, Samaritans, various other Christians, and Negev Bedouin; the other party is sometimes presented as an ethnic group which is multi-religious (although most numerously consisting of Muslims, then Christians, then other religious groups up to and including Samaritans and even Jews).