Here is some info from an old Funk and Wagnall.....
ZitatJust in case one's history textbook had a few extra pages ripped out, this may be a good time to recall just how far one's government is willing to go to start a war under false pretenses.
Below is a partial list of some of the documented "false flag" events that were intended and/or served to start a war in recent and not so recent history.
Franco-Prussian War
Otto von Bismarck waved a "red flag" in front of the "gallic bull" by re-editing a telegram from the Prussian King so that it appeared as though the King had insulted a French ambassador during a time of extremely tense French-German international relations. The telegram is known as the Ems Dispatch. It helped encourage the states to go to war.
Russo-Swedish War
In 1788, a head tailor of the Royal Swedish Opera received an order to sew a number of Russian military uniforms that later were used in an exchange of gunfire at Puumala, a Swedish outpost on the Russo-Swedish border, on June 27, 1788. The staged attack, which caused an outrage in Stockholm, was to convince the Riksdag of the Estates and to provide the Swedish king Gustav III with an excuse to declare a "defensive" war on Russia. This was important since the king did not have constitutional right to start offensive war without agreement of the estates who had already made clear that their acceptance would not be forthcoming.
Spanish–American War, i.e, the Sinking of the USS Maine
The sinking of the USS Maine on 15 February 1898 in Havana harbor was initially thought to be caused by an external mine exploded under the ship. This belief roused anti-Spanish sentiment in the United States and helped catalyze the Spanish–American War later that same year. In 1911 an extensive study was made of the wreck, and again an external mine was believed to be the cause. In 1976 a team of naval explosive experts re?examined the earlier evidence and concluded that the likeliest cause of the sinking was an internal explosion caused by spontaneous combustion of fuel coal stored in a bunker next to a magazine holding more than 5 short tons (4.5 t) of powder charges for the guns. Despite this analysis, some observers believe that the explosion was caused by a U.S. agent for the purpose of angering the U.S. populace and initiating the war which followed. Cuban politician and former director of the national library Eliades Acosta claims that "powerful economic interests" in the United States were probably responsible not only for the sinking of the Maine but for the assassination of three 19th-century U.S. presidents, beginning with Abraham Lincoln.
The Mukden incident in September 1931 involved Japanese officers fabricating a pretext for annexing Manchuria by blowing up a section of railway. In fact the explosion was so weak that the line was unaffected. Six years later in 1937 they falsely claimed the kidnapping of one of their soldiers in the Marco Polo Bridge Incident as an excuse to invade China proper.
Reichstag fire
The Reichstag fire was an arson attack on the Reichstag building in Berlin on 27 February 1933. The fire started in the Session Chamber, and, by the time the police and firemen arrived, the main Chamber of Deputies was engulfed in flames. Police searched the building and found Marinus van der Lubbe, a young, Dutch council communist and unemployed bricklayer who had recently arrived in Germany, ostensibly to carry out political activities.
The fire was used as evidence by the Nazis that the Communists were beginning a plot against the German government. Van der Lubbe and four Communist leaders were subsequently arrested. Adolf Hitler, who was sworn in as Chancellor of Germany four weeks before, on 30 January, urged President Paul von Hindenburg to pass an emergency decree to counter the "ruthless confrontation of the Communist Party of Germany". With civil liberties suspended, the government instituted mass arrests of Communists, including all of the Communist parliamentary delegates. With their bitter rival Communists gone and their seats empty, the National Socialist German Workers Party went from being a plurality party to the majority; subsequent elections confirmed this position and thus allowed Hitler to consolidate his power.
Historians disagree as to whether Van der Lubbe acted alone, as he said, to protest the condition of the German working class, or whether the arson was planned and ordered by the Nazis, then dominant in the government themselves, as a false flag operation. The responsibility for the Reichstag fire remains an ongoing topic of debate and research.
The Gleiwitz Incident
The Gleiwitz incident in 1939 involved Reinhard Heydrich fabricating evidence of a Polish attack against Germany to mobilize German public opinion for war, to establish casus belli, and to justify the war with Poland. Alfred Naujocks was a key organiser of the operation under orders from Heydrich. It led to the deaths of innocent Nazi concentration camp victims who were dressed as German soldiers and then shot by the Gestapo to make it seem that they had been shot by Polish soldiers. This, along with other false flag operations in Operation Himmler, would be used to mobilize support from the German population for the start of World War II in Europe.
Winter War
In 1939 the Red Army shelled Mainila, a Russian town near the Finnish border. Soviet authorities blamed Finland for the attack and used the incident as a pretext to start the Winter War four days later.
Kassa attack
The Kassa attack in 1941 involved the city of Kassa, today Košice (Slovakia), which was then part of Hungary, being bombed by three unidentified planes of apparently Soviet origin. This attack became the pretext for the government of Hungary to declare war on the Soviet Union.
Operation Ajax
The replacement of Iran's Anglo-Persian Oil Company with five American oil companies and the 1953 Iranian coup d'état was the consequence of the U.S. and British-orchestrated false flag operation, Operation Ajax. Operation Ajax used political intrigue, propaganda, and agreements with Qashqai tribal leaders to depose the democratically elected leader of Iran, Mohammed Mosaddeq. Information regarding the CIA-sponsored coup d'etat has been largely declassified and is available in the CIA archives.
Operation Northwoods
The planned, but never executed, 1962 Operation Northwoods plot by the U.S. Department of Defense for a war with Cuba involved scenarios such as fabricating the hijacking or shooting down of passenger and military planes, sinking a U.S. ship in the vicinity of Cuba, burning crops, sinking a boat filled with Cuban refugees, attacks by alleged Cuban infiltrators inside the United States, and harassment of U.S. aircraft and shipping and the destruction of aerial drones by aircraft disguised as Cuban MiGs. These actions would be blamed on Cuba, and would be a pretext for an invasion of Cuba and the overthrow of Fidel Castro's communist government. It was authored by the Joint Chiefs of Staff, but then rejected by President John F. Kennedy. The surprise discovery of the documents relating to Operation Northwoods was a result of the comprehensive search for records related to the assassination of President John F. Kennedy by the Assassination Records Review Board in the mid-1990s. Information about Operation Northwoods was later publicized by James Bamford.
Gulf of Tonkin incident
The Gulf of Tonkin incident (or the USS Maddox incident) is the name given to two separate confrontations involving North Vietnam and the United States in the waters of the Gulf of Tonkin. The first event occurred on August 2, 1964, between the destroyer USS Maddox and three North Vietnamese Navy torpedo boats of the 135th Torpedo Squadron. The second was originally claimed by the U.S. National Security Agency to have occurred on August 4, 1964, as another sea battle, but instead may have involved "Tonkin Ghosts" (false radar images) and not actual NVN torpedo boat attacks.
The outcome of these two incidents was the passage by Congress of the Gulf of Tonkin Resolution, which granted President Lyndon B. Johnson the authority to assist any Southeast Asian country whose government was considered to be jeopardized by "communist aggression." The resolution served as Johnson's legal justification for deploying U.S. conventional forces and the commencement of open warfare against North Vietnam.
In 2005, an internal National Security Agency historical study was declassified; it concluded that the Maddox had engaged the North Vietnamese Navy on August 2, but that there were no North Vietnamese Naval vessels present during the incident of August 4. The Gulf of Tonkin incident has long been accused of being a false flag operation, but this judgment remains in dispute.
"Rightful liberty is unobstructed action according to our will within limits drawn around us by the equal rights of others. I do not add 'within the limits of the law' because law is often but the tyrant's will, and always so when it violates the rights of the individual." Thomas Jefferson
"If people can’t trust not only the executive branch but also don’t trust Congress, and don’t trust federal judges, to make sure that we’re abiding by the Constitution with due process and rule of law, then we’re going to have some problems here." - Barack Obama, June 7, 2013