Conversation so far:
When did Ruhollah Khomeini return to Iran from exile?
On Thursday, 1 February 1979, Ruhollah Khomeini returned to Iran.
What happen to Ruhollah Khomeini after returning to Iran?
Ruhollah Khomeini was welcomed by a joyous crowd estimated to be of up to five million people.
Did Ruhollah Khomeini do anything else important after returning to Iran?
On 11 February, Ruhollah Khomeini appointed his own competing interim prime minister, Mehdi Bazargan to Shapour Bakhtiar.
What year did Ruhollah Khomeini appoint his own prime minister?
In 1979, Ruhollah Khomeini appointed his own interim prime minister.
Are there any other interesting aspects about this article on Ruhollah Khomeini besides his exile and return to Iran?
Ruhollah Khomeini is legally considered inviolable, with Iranians regularly punished for insulting him.

Question: What else did the troops do?
Self-contained rewrite: What else did the troops do when Ruhollah Khomeini?