text: In a 1987 public address Khomeini declared that "these vile and ungodly Wahhabis are like daggers which have always pierced the heart of the Muslims from the back". He announced that Mecca was in the hands of "a band of heretics", (i.e. the House of Saud).
  The incident occurred during the last phase of the bloody Iran–Iraq War, at a moment of "escalating tensions" between Sunni Arab-ruled Iraq (which was receiving help from Sunni Arab-ruled Saudi Arabia) and Persian Shi'i-ruled Iran.  America had reflagged of Kuwaiti petroleum tankers and the introduced of foreign naval escorts in the Persian Gulf, a foreign intervention favored by Saudi Arabia and opposed by Iran. .
  Serious loss of life at Hajj occurs periodically (in 1990, 1994, 1998, 2001, 2004, 2006, 2015); not surprising in a situation where two million or more pilgrims "all trying to do the  same thing in the same place on the same day" while speaking different languages, and are vulnerable to death from suffocation or being physically crushed in the press of the crowd. In 2015, an estimated 2,400 pilgrims, including more than 400 Iranians, were killed in a stampede, that led to a "war of words" between Iran and Saudi Arabia that reached a "fever pitch".