Why was Imam Khomeini sent into exile?

Imam Khomeini: Each and every youth should be a force for defending Islam.

Sahifeh- ye- Imam, V 19, P 198

An important duty

Imam Khomeini: If we really want to present a perfect meaning of sacrifice, sincerity, devotion and ...

Sahifeh- ye- Imam, V 21, P 189

Islamic revolution was totally free from foreign dependence

The late Ayatullah Rouhullah Khomeini of Iran was the most talked of person during 1979 - 1989 period after leading a successful revolution against the powerful Shah Pahlavi who was called the policeman of Persian Gulf.

Imam kept remembering God in all thin and thick times

A memoirs about Imam by Mohammad Sadiq Tabataba’ei

Imam Khomeini: Due to Islam and Islamic Revolution, we have the great blessing of freedom.

Sahifeh- ye- Imam, V 10, P 319

When did struggle for Islamic Revolution gain momentum?