What is Sangha?

Sangha means the community or group of Buddhist monks.
The lay followers of the Buddha respect the monks because the Buddha said to respect three gems that is Buddha, Dhamma and Sangha.
Sangha or the community of monks are very helpful to modern society, because Sangha is the group of people who will lead the society and who will teach the teaching of the Buddha to general people.

Sanghas are the leaders of the people of those who are interested in Buddhism, Now the Buddha is gone but the responsibilities of the monk or Sangha is to reform the mistakes of the monks and Buddhism and teach the people to learn about the Buddhism.

Therefore, in conclusion, Sangha is the eye of the Buddhism.