National unity and Islamic cohesion according to Imam Khomeini

Imam Khomeini on one hand through emphasizing reaching, presence and continuing religious teachings and unity took a step that resulted in the national unity of Iranians and on the other hand he awakened Muslim societies that were in the entire world.
The aim of this research work is to examine and explain the subject of national unity and Islamic cohesion and their way of reaching, continuing and the practical alternatives regarding how they could come true according to Imam Khomeini .