WEC Trek's vision is to provide short-term (up to 2 years) opportunities for individuals or small teams to share your faith and demonstrate God's love practically, supporting WEC ministries worldwide.
If you're ready to give more than 2 years, you can really start to make some headway into people's lives. That's what we call 'Long Term'.
If you're going to go for more than 2 years then you're going to have different questions, needs and expectations than someone going for a shorter time. Of course, what you can do is going to be different too.