Ministry Fields

One Challenge: healthy churches working together to reach all nations. We are about REACHING THE WORLD TOGETHER. THE WORLD means we aim to reach whole nations with the gospel of Jesus Christ. TOGETHER means we seek to do this with the whole body of Christ: a task that is multicultural, multidenominational, and multigenerational.

The role of the OC U.S. Mobilization Center (US-MC) is to recruit, send, and care for the administrative and personal needs of all those being sent from the USA to ministry fields around the world

Where Do Our Mission Serve in the World?

The OC International’s US-MC is one of the mobilization center members of the OC Global Alliance, partnering together to effectively deploy people to serve on multiethnic and multinational OC Global Alliance ministry teams in nations around the world.

Videos of OC Ministries in Action

Watch these videos to see various ministries regions where OC mission workers serve.

See also:
Long-term Missions
Short-term Missions

One Challenge’s Mobilization department can be reached at:

Missions Mobilization
One Challenge is an international mission sending agency empowering local church ministry in more than 100 countries around the world. We seek to empower the whole body of Christ to bring a transforming love and hope to all people. When invited by local leaders, OC facilitates local bodies of believers to identify, train, and send global workers toward realizing a “from everywhere to everywhere” vision. For more information, please email OC Mobilization at Or go to our Mobilization blog called “Prepare for Impact” at