There is a clear commandment by Jesus to go into the all world and make disciples in his name, and this can be evidenced by Thought for the Day, American mega churches, mormons, Jehovahs witnesses.
I get the impression that Islam isn't actually that evangelical - more strengthening existing believers and shouting yer going to hell at kuffar.
So how evangelical is Islam? Is the main tool holy war, not persuasion?
Da'wah - calling to Islam - is extremely imortant. In fact it is an obligation:
Allah - Most High and Very Enormous is He, said in his holy book, The Qur'an:
"Invite to the Way of your Lord with wisdom and beautiful preaching; and argue with them in ways that are best and most gracious" (16:125)
"Enjoin what is right, forbid what is wrong.", and believe in Allah. (3:110)
And let there be [arising] from you a nation inviting to [all that is] good, enjoining what is right and forbidding what is wrong, and those will be the successful. (3:104)The Prophet (Sweetest Blessing be upon him) has said: “Convey from me, even one verse.” (Bukhari)
Aqoolu qawli hatha wa astaghfirulah li wa lakum.