As of yesterday, a 50-year long civil war finally came to an end in Colombia.

Colombia's government and leftist FARC rebels signed a historic ceasefire deal on Thursday that brought them tantalizingly close to ending the longest running conflict in the Americas.
The accord, capping three years of peace talks in Cuba, sparked celebrations and tears of happiness among some in the Colombian capital. It sets the stage for a final deal to end a guerrilla war born in the 1960s out of frustration with deep socio-economic inequalities that outlived all other major uprisings in Latin America.
"May this be the last day of the war," said bearded FARC commander Rodrigo Londono, better known by the nom de guerre Timochenko, his voice choked, after shaking hands with Colombian President Juan Manuel Santos at a ceremony in Havana.

Formed in 1964, FARC was considered a terrorist organization. But the origins of the conflict date back to class conflict in the 1920's.

According to Wikpedia, nearly 5,000 soldiers and police, over 11,000 FARC rebels, and 2,400 right-wing paramilitaries were killed in the five decades of conflict.
More importantly, 177,000 civilians also died, and 25,000 were disappeared.
The United States finance this war from the very beginning.

Why should you care? As an American you've barely heard anything about it, if you were even aware the conflict existed.
In reality its a very, very big deal.

In regards to internally displace persons (IDPs), Colombia is the highest with 6.9 million people displaced. The report explains that Colombia's increase in IDPs from 2014 came because "few IDPs returned to their habitual residences, and the Government reported 113,700 newly displaced people."

That's right. There are internal war refugees in Colombia than in Syria or Iraq. Nearly 7 million people.
Unfortunately, organized crime, many of them former paramilitaries, will likely prevent these refugees from returning home anytime soon.