By 1796 chaos had broken out in Colombia as the political scene was a mess and every region was declaring independence from the others. At the time Spain had little control over the region and couldn't hold the region together as they had more pressing issues to deal with in Spain itself. By 1810 France had taken over Spain and Spain's colonies in the Americas began claiming independence. This included Gran Colombia in the same year, a region that included Venezuela, Ecuador, Panama, and Colombia, centered in Bogota.
Despite calls for independence from numerous groups, the people argued over who actually ruled over the region and the people began fighting over power, leadership, and more localized independence. This allowed the Spanish to re-group and attempt to re-gain control over the region. The people finally unified and defeated the Spanish in 1819 with the help of Simon Bolivar from Venezuela.
The new country of Gran Colombia was centered in Bogota and Bolivar served as the country's first president. He ruled the country as he led on the battlefields, with a strong hand and much confidence in his actions. This led to conflicts as both Venezuela and Ecuador sought freedom from this country. In 1830 Venezuela gained that independence and shortly after so too did Ecuador, leading to a change in the country's name to the Republic of Colombia in 1886.
From the 1830s, the country has been politically divided, at times working together for progress, while at other times fighting amongst themselves and creating instability. The arguments included everything from the role of the Catholic Church to political structure, but for the most part the parties worked together or power shifted from one party to the next in relative peace. A noticeable exception to this came with the Thousand Days War, which took place from 1899 to 1902. This was a time in Colombia when the parties and people fought over power, direction, and control. One of the results of this violence was that Panama gained independence from Colombia the following year.
Another battle between the people occurred in the 1940s and early 1950s called "La Violencia." These battles resulted in hundreds of thousands of death and ended in 1953 with a military coup. Throughout the next decade the military had an active role in the country's politics in order to ensure stability and their political agenda. These battles left the country in shambles and it was the new government's job to pick up the pieces, while trying to re-establish the economy and get it back on track. It was also during this time that people began looking for a more stable income as the drug trade grew significantly. This lack of government oversight also led to the growth of military groups.
Among the insurgency groups in Colombia were the April 19th Movement (M-19), the National Liberation Army (ELN), and FARC. In the late 1970s and early 1980s the government made a very substantial effort to destroy these groups and did so quite successfully with the help of the military and questionable actions that many people claim are human rights violations. Battles with the FARC and M-19 ended briefly in 1984 with a cease fire, but ELN continued the fighting. The M-19 also continued the fight the following year as they took the Supreme Court magistrates hostage. Fortunately, most of this violence has since ended as a new government and constitution were formed in 1991.
By the 1980s the drug cartels had gained much power, wealth, and prominence. These groups fought each other, the insurgency groups, and the government to maintain control over the highly profitably drug trade. As these groups became wealthier and wealthier, they gained more control and began bribing government officials and essentially created their own armies to protect their drugs and the drug trade. The power of these drug organizations has greatly decreased since 1993 when the head of the "Medellin Cartel," Pablo Escobar was killed by the Colombian government.
With a new government and constitution in 1991 and the much maligned drug cartels in the early 1990s, the government and people are slowly gaining control over their country. Despite a slow (not an end) to violence, the country is still struggling in multiple ways, most notably in the economic realm. Unemployment has risen and the economic situation seems dire as violence is still common and the drug trade has slowed, but is still a substantial burden on the country.