Title: Red Guards (Finland)
Content:  The Red Guards came about during a general strike in November 1905. The strike began in reaction to the Russification of Finland and was a joint effort between the Social Democratic labour movement and the political right. The strike lasted only a week, but in the final days differing views created a deep gap between the two parties. The National Guard, which was established for law enforcement as the police began to participate, was likewise split into the working-class Red Guards and the bourgeoisie-aligned Protection Corps. Some minor incidents followed, especially in the capital Helsinki, but violent clashes were avoided. Although the general strike was over, both guards remained active. In 1906, the number of Red Guard members was estimated at 25,000.
Title: Red Guards (Finland)
Content:  The Red Guards (Punakaarti, Röda gardet) were the paramilitary units of the Finnish labour movement in the early 1900s. The first Red Guards were established during the 1905 general strike, but disbanded a year later. After the Russian 1917 February revolution the Red Guards were re-established and in the 1918 Finnish Civil War they formed the army of Red Finland. The combined strength of the Red Guard was about 30,000 at the beginning of the Civil War, peaking at between 90,000 and 120,000 during the course of the conflict. The number included more than 2,000 members of the Women's Guards. 
Title: Red Guards (Russia)
Content:  Red Guards (Красная гвардия) were paramilitary volunteer formations consisting mainly of factory workers, peasants, cossacks and partially of soldiers and sailors for "protection of the soviet power". Red Guards were a transitional military force of the collapsing Imperial Russian Army and the base formations of Bolsheviks during the October Revolution and the first months of the Russian Civil War. Most of them were formed in the time frame of the Russian Revolution of 1917, and some of the units were reorganized into the Red Army during 1918. The Red Guards formations were organized across most of the former Russian Empire, including territories outside the contemporary Russian Federation such as Finland, Poland, Estonia, Ukraine, and others. They were not centralized and were formed by decision of a local political party and local soviet members. By fighting to protect and extend the power of the soviets, they aided the creation of a new state that (according to its original conception) would give "all power to the soviets": the Soviet Union.
Title: List of army units called Guards
Content: Red Guards (Tự vệ Đỏ) is the precursor force of Vietnam's today police. The Red Guards were formed by Indochinese Communist Party in 1930 - 1931, during Nghệ-Tĩnh uprising against French rule. 
Title: Red Guards
Content:   Red Guards was a mass student-led paramilitary social movement mobilized and guided by Chairman Mao Zedong in 1966 through 1967, during the first phase of the Chinese Cultural Revolution, which he had instituted. According to a Red Guard leader, the movement's aims were as follows: "Chairman Mao has defined our future as an armed revolutionary youth organization.... So if Chairman Mao is our Red-Commander-in-Chief and we are his Red Guards, who can stop us? First we will make China Maoist from inside out and then we will help the working people of other countries make the world red...and then the whole universe." Despite being met with resistance early on, the Red Guards received personal support from Mao, and the movement rapidly grew. The movement in Beijing culminated during the "Red August" of 1966, 
Title: Red Guards (United States)
Content:  The Red Guards are American "Marxist–Leninist–Maoist collectives of community organizers and mass workers" originating in Los Angeles with other branches operating in Austin, Kansas City, Pittsburgh, and Charlotte, as well as St. Louis and San Marcos, under the distinct titles of Red Path Saint Louis and San Marcos Revolutionary Front respectively. The group is named after the Red Guards that operated under Mao Zedong in the People's Republic of China during the Cultural Revolution that were composed of militant students who campaigned against the "reactionary and bourgeois" culture of China. As of 2020 most Red Guards chapters have either been abandoned or have announced their dissolution. After the dissolution they have gone under 
Title: Russian Guards
Content:  The Red Guards (Krasnaya Gvardiya) were armed groups of workers formed during the Russian Revolution of 1917, although the designation and concept dates back to Moscow during the Revolution of 1905. In 1917 the volunteers of the Red Guard and their elected leaders formed the main strike force of the Bolsheviks. These workers' militias were created in March 1917 in by Factory and Plant Committees and by Bolshevik party cells, with the initial purpose of defending the industrial enterprises and districts where they were recruited. In October 1917 the Red Guards of Petrograd played a leading role in the capture of the Winter Palace and the overthrow of the Provisional Government. When the Soviet Red Army was formed in 1918, the Red Guards became the Army Reserve and the basis for the formation of regular military detachments. The White Guard (Belaya Gvardiya) of the White Army (Belaya Armiya, whose members were called belogvardeytsy),  the military forces of the Russian White Movement, which opposed the Bolsheviks after the October Revolution and fought against the Red Army during the Russian Civil War from 1918 to 1921.
Title: Red Guards (Russia)
Content:  On March 26, 1917, the Bureau of the Central Committee of the RSDRP(b) published a resolution "About the Provisional Government" since then the term, Red Guards, received the widest usage. The biggest centralized Red Guards formations were created in Petrograd and Moscow. Soon thereafter a series of attempts took place to legalize those formations. On April 14, 1917, the Moscow Committee of the Russian Social Democratic Labour Party (Bolsheviks) (RSDLP(b)) adopted a resolution for the creation of its Red Guard. On April 17 in Petrograd, the council of workers' squad's representatives created a commission for the formation of workers' guards and on April 29 in the Pravda newspaper has appeared a draft of its statute. The Vyborg raion (district) council of Petrograd on April 28 declared to transform the squads of workers' and factory militia into the Red Guard squads. On May 17 the Samara council of workers' representatives 
Title: Red Guards (Russia)
Content:  established a commission in the creation of Red Guard squads. A big role in the creation of the Red Guard squads played the Factory committees. Before April 1917, seventeen Russian cities created Red Guard squads, which by June increased in numbers to 24. Red Guards were the base for the forming of the Red Army. Therefore, the term is often used as just another English name for the Red Army in reference to the times of the Russian Revolution and Russian Civil War. In Petrograd, the head of the Red Guards (30,000 personnel) was Konstantin Yurenev. At the time of the October Revolution, the Russian Red Guards had 200,000 personnel. After the revolution, the Red Guards performed some of the functions of the regular army, between the time the new Soviet government began demobilizing the old Russian military and the time the Red Army was created in January 1918.
Title: Chinese Red Army
Content:  Typically a Red Army's base area was surrounded by enemy forces. To protect the base area from enemy attack, the Red Army recruited red guards. The red guards were commanded by officers of the local soviet. When large-scale war broke out, the red guards were responsible for the logistical support of the Red Army and supplied new soldiers for the Red Army. For example, in the winter of 1932, Xiao Ke's Eighth Army had 2,200 red soldiers and 10,000 red guards. The red guards' officers were not always loyal. In the spring of 1933, one of the red guards' officers killed 29th Army's commander Chen Qianlun and surrendered to the Nationalist forces.

Question: when did the red guards start and end?
Answer: 1966 and 1967.
in 1966 and 1967.