Spread of Islam by peaceful means in Indonesia,Malaysia,Kerala,East coast of Africa:important example of dawah

It is a misconception that Islam spreaded by sword

Indonesia and Malaysia.
Indonesia is a country that has the maximum number of Muslims in the world.
The majority of people in Malaysia are Muslims. May one ask, “Which Muslim
army went to Indonesia and Malaysia?”
East Coast of Africa.
Similarly, Islam has spread rapidly on the East Coast of Africa. One may again
ask, if Islam was spread by the sword, “Which Muslim army went to the East
Coast of Africa?”

Indian states of kerala where no muslim Army came rather Sahaba Jamaat came.Some 12-13 sahaba graves are reported  in kerala. In Malabar region of Kerala percentage is from 40-80% of Muslims.

No compulsion in religion.
With which sword was Islam spread? Even if Muslims had it they could not use
it to spread Islam because the Qur’an says in the following verse:
“Let there be no compulsion in religion: Truth stands out clear from
[Al-Qur’an 2:256]
11. Sword of the Intellect.
It is the sword of intellect. The sword that conquers the hearts and minds of
people. The Qur’an says in Surah Nahl, chapter 16 verse 125:
“Invite (all) to the way of thy Lord with wisdom and beautiful preaching;
and argue with them in ways that are best and most gracious.”
[Al-Qur’an 16:125]