The map of global Christianity that our grandparents knew has been turned upside-down.
More Christians worship in Anglican churches in Nigeria each week than in all the Episcopal and Anglican churches of Britain, Europe, and North America combined. There are more Baptists in Congo than in Britain. More people in church every Sunday in communist China than in all of Western Europe. Ten times more Assemblies of God members in Latin America than in the U.S.
Christianity has never had a territorial center. Our center is the person of Christ, and wherever he is known, there is another potential center of faith and witness.
There are many more Korean missionaries than British, and some Nigerian evangelical mission organizations are larger in personnel than most Western ones (while operating on budgets that are a fraction of their Western counterparts').
So you are as likely to meet a Brazilian missionary in North Africa as a British missionary in Brazil.