Casus belli in the context of "War of succession"

The Parthian war of Caracalla was an unsuccessful campaign by the Roman Empire under Caracalla against the Parthian Empire in 216–17 AD. It was the climax of a four-year period, starting in 213, when Caracalla pursued a lengthy campaign in central and eastern Europe and the Near East. After intervening to overthrow rulers in client kingdoms adjoining Parthia, he invaded in 216 using an abortive wedding proposal to the Parthian king Artabanus's daughter as a casus belli. His forces carried out a campaign of massacres in the northern regions of the Parthian Empire before withdrawing to Asia Minor, where he was assassinated in April 217. The war was ended the following year after Parthian victory at the Battle of Nisibis, with the Romans paying a huge sum of war reparations to the Parthians.

Roman Armenia refers to the rule of parts of Greater Armenia by the Roman Empire from the 1st century AD to the end of Late Antiquity. While Armenia Minor had become a client state until it was incorporated into the Roman Empire proper during the 1st century AD, Greater Armenia remained an independent kingdom under the Arsacid dynasty. Throughout this period, Armenia remained a bone of contention between Rome and the Parthian Empire, as well as the Sasanian Empire that succeeded the latter, and the casus belli for several of the Roman–Persian Wars. Only in 114 would Emperor Trajan conquer and incorporate it as a short-lived Roman province.

In the late 4th century, Armenia was divided between Rome and the Sasanians, who took control of the larger part of the Armenian Kingdom and, in the mid-5th century, abolished the Armenian monarchy. In the 6th and the 7th centuries, Armenia once again became a battleground between the East Roman Empire (Byzantine) and the Sasanian Empire until both powers were defeated and replaced by the Muslim Caliphate in the mid-7th century.

Piracy in the Persian Gulf describes the naval warfare that was prevalent until the 19th century and occurred between seafaring Arabs in Eastern Arabia and the British Empire in the Persian Gulf. It was perceived as one of the primary threats to global maritime trade routes, particularly those with significance to British India and Iraq. Many of the most notable historical instances of these raids were conducted by the Al Qasimi tribe. This led to the British mounting the Persian Gulf campaign of 1809, a major maritime action launched by the Royal Navy to bombard Ras Al Khaimah, Lingeh and other Al Qasimi ports. Some critics of the historical narrative, such as Sharjah ruler Sultan bin Muhammad Al Qasimi in his book The Myth of Piracy in the Gulf, argue that the allegations of piracy were exaggerated by the East India Company to cut off untaxed trade routes between the Middle East and India.

Piratical activities were common in the Persian Gulf from the late 18th century to the mid-19th century, particularly in the area known as the Pirate Coast which spanned from modern-day Qatar to Oman. Piracy was alleviated from 1820 with the signing of the General Maritime Treaty, cemented in 1853 by the Perpetual Maritime Truce, after which the Pirate Coast began to be known by the British as the Trucial Coast (present-day United Arab Emirates).

A false flag operation is an act committed with the intent of disguising the actual source of responsibility and pinning blame on another party. The term "false flag" originated in the 16th century as an expression meaning an intentional misrepresentation of someone's allegiance. The term was originally used to describe a ruse in naval warfare whereby a vessel flew the flag of a neutral or enemy country to hide its true identity. The tactic was initially used by pirates and privateers to deceive other ships into allowing them to move closer before attacking them. It later was deemed an acceptable practice during naval warfare according to international maritime laws, provided the attacking vessel displayed its true flag before commencing an attack.

The term today extends to include countries that organize attacks on themselves and make the attacks appear to be by enemy nations or terrorists, thus giving the nation that was supposedly attacked a pretext for domestic repression or foreign military aggression (as well as to engender sympathy). Similarly deceptive activities carried out during peacetime by individuals or nongovernmental organizations have been called false-flag operations, but the more common legal term is a "frameup", "stitch up", or "setup".

The Gleiwitz incident (German: Überfall auf den Sender Gleiwitz; Polish: prowokacja gliwicka) was a false flag attack on the radio station Sender Gleiwitz in Gleiwitz (then Germany and now Gliwice, Poland) staged by Nazi Germany on the night of 31 August 1939. Along with some two dozen similar incidents, the attack was manufactured by Germany as a casus belli to justify the invasion of Poland. Prior to the invasion, Adolf Hitler gave a radio address condemning the acts and announcing German plans to attack Poland, which began the next morning. Despite the German government using the attack as a justification to go to war with Poland, the Gleiwitz assailants were not Polish but were German SS officers wearing Polish uniforms.

During his declaration of war, Hitler did not mention the Gleiwitz incident but grouped all provocations staged by the SS as an alleged "Polish assault" on Germany. The Gleiwitz incident is the best-known action of Operation Himmler, a series of special operations undertaken by the Schutzstaffel (SS) to serve German propaganda at the outbreak of war. The operation was intended to create the appearance of a Polish aggression against Germany to justify the invasion of Poland. On September 3, Britain and France declared war on Germany, and the European theatre of World War II had begun. Manufactured evidence for the Gleiwitz attack by the SS was provided by the undercover German SS officer Alfred Naujocks in 1945.

The ultimatum of July 23, 1914, was a diplomatic note delivered by the Austro-Hungarian ambassador in Belgrade to the Serbian Minister of Finance [fr]. The issuance of the ultimatum is widely seen as an immediate precursor to the outbreak of World War I in August 1914. The note was Austria-Hungary's response to the assassination of Archduke Franz Ferdinand by Serbia-aligned perpetrators the previous month, following weeks of deliberation.

The text was meticulously constructed to be unacceptable to the Serbian government, thereby ensuring its rejection and thus adding to Austria-Hungary's casus belli. Serbia's response was dismissed by the Austro-Hungarian government.

A war of succession is a war prompted by a succession crisis in which two or more individuals claim to be the rightful successor to a deceased or deposed monarch. The rivals are typically supported by factions within the royal court. Foreign powers sometimes intervene, allying themselves with a faction. This may widen the war into one between those powers.

Wars of succession were some of the most prevalent types of wars by cause throughout human history, but the replacement of absolute monarchies by an international order based on democracy with constitutional monarchies or republics ended almost all such wars by 1900.

Lüshunkou District (also Lyushunkou District; 旅顺口区) is a district of Dalian, Liaoning province, China. The district's area is 512.15 km (197.74 sq mi) and its permanent population as of 2020 is 398,579.

Lüshunkou is located at the extreme southern tip of the Liaodong Peninsula. It has a natural harbor, the possession and control of which became a casus belli of the Russo-Japanese War (1904–05). Japanese and then Russian administration was established in 1895 and continued until 1905 when control was ceded to Japan. During that period, it was world-famous and was more significant than the other port on the peninsula, Dalian proper.

Israeli passage through the Suez Canal and Straits of Tiran was restricted by Egypt, in cooperation with Saudi Arabia, for much of the time between the 1948 Arab–Israeli War and the 1967 Six-Day War. Since the Egypt–Israel peace treaty of 1979, Israel has enjoyed freedom of navigation through the Suez Canal and the Straits of Tiran.

Egypt was one of the main Arab countries that invaded Israel after the Israeli Declaration of Independence, sparking the 1948 Arab–Israeli War. Although the Egyptians were defeated during this conflict, they managed to occupy what would become known as the Gaza Strip and did not recognize Israel as a sovereign state following the 1949 Armistice Agreements. The ceasefire between the two countries was being tested by the Egypt-based Palestinian Fedayeen insurgency, which was prompting Israeli reprisal operations. Egypt had closed the Suez Canal and the Straits of Tiran to all Israeli vessels in 1949, preventing imports and exports amidst Israel's austerity period. Tensions worsened as the Egyptians gradually strengthened their blockade of Israel, culminating in the Suez Crisis of 1956, during which Israel invaded Egypt's Sinai Peninsula in order to force a re-opening of the blockaded waters, though the Suez Canal was closed until 1957, when Israeli troops withdrew from Egypt. However, in the mid-1960s, Egypt imposed another blockade against Israel, which had declared that any such action would be a casus belli. The Egyptian military subsequently mobilized along Israel's border and expelled the United Nations Emergency Force, leading to the Six-Day War of 1967, which ended in an Egyptian defeat and the Israeli occupation of the Sinai Peninsula. Following the outbreak of hostilities in 1967, the Suez Canal was closed until 1975. In 1973, Egypt attempted to retake the Sinai Peninsula by force, triggering the Yom Kippur War; although the initial Egyptian offensive was successful, the conflict ended in an Israeli victory. In 1979, Egypt became the first Arab country to recognize Israel as part of a bilateral peace treaty, in exchange for which Israel withdrew from the Sinai Peninsula in 1982. The two countries have remained at peace since 1979, and the overall Egypt–Israel relationship is generally cordial and cooperative.