Cliff and Cristine Wiener teach at the YWAM Discipleship Training School (DTS) in Perth, Australia, where they have been for approximately 14 years. Every 6 months, a group of students come and learn from them on how to witness to others. As part of their courses, they do both local witnessing to the people of Perth and also the surrounding countries where local churches have contacted the DTS for help in reaching out to people in their area. This outreach may be through music, sports, medical help, etc. The local church then follows up with those that were impacted by the short-term ministry.