Turkey invaded northern Syria in October 2019. The invasion was aimed at creating a buffer zone between Turkey and the Syrian Kurdish militia, which Turkey sees as a threat.
The invasion has been successful in creating the buffer zone, but it has also led to a humanitarian crisis. Thousands of people have been displaced, and dozens of civilians have been killed.
The invasion has also been criticized by the United States and its allies. They argue that the invasion undermines the fight against the Islamic State group and destabilizes the region.