Militia
Montenegro: In 1910 King Nicholas I of Montenegro proclaimed that all male citizens were members of a national militia and had both a right and a duty to own at least one Gasser Pattern revolver under penalty of law.
The official reason for the King's decree was to create an armed populace that would deter neighbouring countries from attacking Montenegro, which was unable to field a large army. However, it was widely believed in Montenegro that this decision was actually taken because the King owned shares in Leopold Gasser Waffenfabrik in Vienna - the patent holder and sole manufacturer of the pistol at that time. Despite this, the decree actually obliged Montenegrin adult males to own a Gasser Pattern revolver, not necessarily one made by Gasser itself. In fact Leopold Gasser was faced with such heavy demand for the pistol internationally, that it could not fulfil all of the orders placed for it. This led the revolver's manufacturer to license out production to other companies and many Gasser Pattern pistols were then manufactured and sold by other European firms, most notably based out of Belgium and Spain. Even these licensed models did not satiate demand for the pistol and this, alongside a lax enforcement of intellectual property rights in Montenegro, led to many unlicensed local models of the pistol also being produced, with quality ranging from very good to outright dangerous to its user.
Subsequently, the weapon quickly became a status symbol for Montenegrin men and was commonly worn alongside traditional attire. Many Montenegrin immigrants that travelled to North America brought their Gasser pattern revolvers with them and at least two batches of several thousand pistols were smuggled into Mexico during the Mexican Revolution, leading to the Gasser revolver becoming widespread in the Americas. However, as the original reason for their mass production and the generation that grew around it faded, the pistol eventually lost its place as a status symbol and many were either given away or sold in the secondhand market.

Netherlands: Schutterij (Dutch pronunciation: [sxʏtəˈrɛi]) refers to a voluntary city guard or citizen militia in the medieval and early modern Netherlands, intended to protect the town or city from attack and act in case of revolt or fire. Their training grounds were often on open spaces within the city, near the city walls, but, when the weather did not allow, inside a church. They are mostly grouped according to their district and to the weapon that they used: bow, crossbow or gun. Together, its members are called a Schuttersgilde, which could be roughly translated as a "shooter's guild". It is now a title applied to ceremonial shooting clubs and to the country's Olympic rifle team.

New Zealand: From the Treaty of Waitangi in 1840 until 1844 small detachments of British Imperial troops based in New Zealand were the only military. This changed as a result of the Flagstaff War, with the colonial government passing a Militia Act on 25 March 1845. Militia units were formed in Auckland, Wellington, New Plymouth, and Nelson. Service in the militia was compulsory.
Many localized militia saw service, together with British Imperial troops, during the New Zealand Wars. In the late nineteenth century a system of local Volunteer militias evolved throughout the country. These were semi-trained but uniformed and administered by a small number of regular "Imperial" officers.
The militia units were disbanded and reformed as the Territorial Army in 1911.

North Korea: The Worker-Peasant Red Guards is a North Korean paramilitary organization organized on a provincial/town/city/village level.

Norway: 

Pakistan: Militias have played an important role supporting Pakistan's Military since the Indo-Pakistani War of 1947 when Pakistan, with the support of militias, was able to gain control of parts of the region of Kashmir. Pakistan found the militias volunteering to participate in the Indo-Pakistani war of 1965 and the Indo-Pakistani war of 1971 quite useful as well.
Currently Pakistani citizens forming militias from the Khyber Pakhtunkhwa province are participating in the 'war on terror'.

Portugal: Portugal has a long tradition in the use of militias for national defense. Between the 12th and 16th centuries, the municipal militias – composed of spearmen, pikemen, horsemen, slingers, javelineers, archers, crossbowmen and later arquebusiers – constituted the main component of the Portuguese Royal Army, together with smaller military forces from the King, the military orders and the feudal lords.
After some failed previous attempts, in 1570 King Sebastian of Portugal created the Ordenanças, a centrally managed military territorial organization that would replace the municipal militias and became the basis of a national army. After 60 years of foreign domination (1580–1640), the Ordenanças were reorganized for the Portuguese Restoration War. The Portuguese Army was then organized in three lines, with the 2nd and 3rd being militia forces. The Ordenanças became the 3rd line and acted both as a territorial draft organization for the 1st and 2nd line troops and as a kind of home guard for local defense. The 2nd line was made of the auxiliary troops, also militia units with the role of regional defense. In the end of the 18th century, the auxiliary troops were renamed "Militias".
In the Peninsular War, the Militia regiments and the Ordenanças units had an important role in the defense of the country against the Napoleonic invader army. Still in the 19th century, the Militia units also had an important role in the Liberal Wars, with the majority of those troops fighting on the side of King Miguel. Besides the regular militias, a number of volunteer militia units were formed to fight on both sides of the war.
With the establishment of the constitutional regime, the old Militias and Ordenanças were replaced by a single national militia force, the National Guard. However, the National Guard revealed itself an ineffective and undisciplined force. Their units became highly politicized, being involved in a number of conspiracies and coups. The National Guard having less and less confidence from the authorities, became extinct in 1847, terminating a long tradition of national militias in Portugal.
During the 20th century, some experiments with militia type forces were made. From 1911 to 1926, the Portuguese Army was organized as a militia army. Also, in 1936, the Estado Novo regime created the Portuguese Legion as a political volunteer militia, dedicated to the fight against the enemies of country and of the social order. From World War II, the Portuguese Legion assumed the responsibility for civil defense, this becoming its main role during the Cold War, until its extinction in 1974.

Russia and the Soviet Union: Neither the Russian Empire, nor the Soviet Union ever had an organised force that could be equated to a militia. Instead a form of organisation that predated the Russian state was used during national emergencies called Narodnoe Opolcheniye (People's Regimentation). More comparable to the English Fyrd, it was a popular voluntary joining of the local полк polk, or a regiment, though it had no regular established strength or officers, these usually elected from prominent local citizens. The Tsarist regime was particularly reluctant to arm and organise militia forces because of concern over a repetition of the Pugachev Serf Revolt of the late 18th century. Only in the face of the national emergency of 1812 was the raising of opolcheniye "cohorts" permitted. Numbering over 223,000, loosely trained and barely equipped, these enthusiastic volunteers nevertheless provided a useful reserve for the regular army.
Although these spontaneously created popular forces had participated in several major wars of the Russian Empire, including in combat, they were not obligated to serve for more than one year, and notably departed for home during the 1813 campaign in Germany. On only one occasion, during the military history of the Soviet Union, the Narodnoe Opolcheniye was incorporated into the regular forces of the Red Army, notably in Leningrad and Moscow.
The term Militsiya in Russia and former Communist Bloc nations was specifically used to refer to the civilian police force, and should not be confused with the conventional western definition of militia. The term, as used in this context, dated from post-revolutionary Russia in late 1917 and was intended to draw a distinction between the new Soviet law enforcement agencies and the disbanded Tsarist police. In some of these states, such as  Ukraine, the "militia" were renamed as "police" while in other states (e.g. Belarus) the title remains unchanged. In Russia itself the "militia' became "police" (in Russian: Полиция, Politsiya) in March 2011.

Sri Lanka: The first militias formed in Sri Lanka were by Lankan Kings, who raised militia armies for their military campaigns both within and outside the island. This was due to the reason that the Kings never maintained a standing army instead had a Royal Guard during peacetime and formed a militia in wartime.
When the Portuguese who were the first colonial power to dominate the island raised local militias under the command of local leaders known as Mudaliyars. These militias took part in the many Portuguese campaigns against the Lankan Kings. The Dutch continued to employ these militias but due to their unreliability tended to favor employing Swiss and Malay mercenaries in their campaigns in the island.