Signs have mounted in recent days of a potentially explosive confrontation Monday, especially if student protesters dare to take their demonstrations off campuses.
Iran's police chief, Gen. Ismail Ahmadi Moghaddam, warned that security forces will crush any protests Monday.
"If any unauthorized gatherings take place outside the universities, police will confront them," Moghaddam was quoted as saying by the semi-official Fars news agency.
Monday's protests, if they go ahead, would be the first major show of force by the opposition since Nov. 4, when Iranian security forces beat anti-government protesters with batons
on the sidelines of state-sanctioned rallies to mark the 30th anniversary of the U.S.
Embassy takeover.The opposition has sought to display unity and resolve after relentless crackdowns on their protests and a mass trial of more than 100 activists and prominent pro-reform figures accused of fomenting the postelection unrest and seeking to topple the government.
Please explain to me the emboldened parts.
I know the meaning of "rallies" but can't understand "on the sidelines of state-sanctioned rallies". Similarly, I know the meaning of "embassy" but have no clue about "embassy takeover".
Source :
http://news.yahoo.com/s/ap/20091206/ap_on_re_mi_ea/ml_iran