The year Iran almost invaded Afghanistan. From the New York Times on September 17, 1998:
To American eyes, the clerical dictatorships of Iran and Afghanistan can seem variations on the same Islamic fundamentalist theme. But relations between the two neighboring countries are now at a flash point. Ethnic, political and religious tensions have been exacerbated by the recent killings of at least eight Iranian diplomats by Afghan Taliban fighters. Iran is now assembling some 250,000 troops along the Afghan border and threatens military action unless its demands for amends are met.
I wonder how the history of the past thirteen years would have been different if Iran had sent a quarter of a million soldiers into Afghanistan to overthrow the Taliban in the fall of 1998.