The former Soviet Union marched into Afghanistan on Christmas Eve, 1979, claiming it was invited by the new Afghan communist leader, Babrak Karmal, setting the country on a path of 40 years of seemingly endless wars and conflict.
Here is a timeline of some key dates in Afghanistan's 40 years of wars:
2018-2019 Zalmay engages in on-again, off-again talks with the Taliban, mainly in the Gulf Arab state of Qatar where the insurgents maintain a political office. The Taliban refuse to negotiate with the Kabul government
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