Islam And Under Age Marriage!

The "Under-age" Marriage with consummation (I.e. carnal knowledge, intimate intercourse) is not permitted in Islam, a girl has to reach the age of puberty before marriage can be consummated (I.e. carnal knowledge, intimate intercourse) .

But Islam permits the betrothal, engagement and marriage of a girl even at birth and of-course this has always been the practice of many cultures in Africa and the world over.
However , the girl might grow up and refused to be married to the man she is betrothed, engaged or married to at birth - either due to religion or lack of love.
Her permission must be sought before the marriage could be consummated. There is no forced marriage in Islam.

The Prophet (Peace and blessings of God be upon him) did not approve of forced marriage.
He [the best of mankind] (saw) is the best example for us to follow. Allahu Allam....Allah knows best.