The need in the 10/40 window is great. For now, you and your class may decide to sponsor an evangelist or some equipment for one via Global Outreach. Or study and pray for other countries in the 10/40 window. Or pray for a language served by AWR or a project by ADRA.
Then Jesus came to them and said, "All authority in heaven and on earth has been given to me. Therefore go and make disciples of all nations, baptizing them in the name of the Father and of the Son and of the Holy Spirit, and teaching them to obey everything I have commanded you. And surely I am with you always, to the very end of the age." Matthew 28:18-20.