The Syrian civil war started five years ago, in March 2011, when hundreds of Syrian protesters took to the streets of Damascus calling for the removal of President Bashar al-Assad.

It all started in the city of Daraa, when 15 boys between 10 and 15 years old were arrested and tortured by the secret police after they painted grafitti that read: “The people want to topple the regime!”

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The incident triggered a series of protests that spread across the nation. Cruel crackdowns by the government soon turned the opposition into armed insurrection. As the civil war escalated, the Islamic State entered the fray and began to claim territory.

Up until last month, the conflict had taken more than 270,000 lives, according to the Syrian Observatory for Human Rights.

The United Nations Office for the Coordination of Humanitarian Affairs (OCHA) estimated that more than 1.2 million people have been injured. More than half of the 20 million people in Syria have been displaced and 4.6 million of them have become refugees outside Syria.

An estimated 13.5 million people need humanitarian assistance; 11.5 million people require health assistance; 8.7 million people are without sufficient food; 2.4 million people need shelter; and 70 percent of the population has no regular access to safe drinking water.

Though it amounts to the most disastrous humanitarian situation in the 21st century, most of us have become numb to this crisis.

To remind us of the damage it has done to the Syrian people, we developed an application that allows you to simulate what the scale of the war would be if it were happening in your own country.

This story is cross-posted with PRI.org.