This project attempts to answer how and why nongovernmental organization (NGO) campaigns were effective in achieving their desired outcomes in the campaign to ban landmines and the campaign to stop the Multilateral Agreement on Investment (MAI). Second, the project asks how and why NGOs were effective in influencing Canadian foreign policy on landmines and the MAI? Third, how do these two campaigns compare in effectiveness and what lessons can we extract from such a comparison? The NGO campaigns are analyzed against a taxonomy for NGO campaign effectiveness, developed by Jennifer Chapman and Thomas Fisher (2000). The taxonomy's variables, which Chapman and Fisher argue facilitate NGO policy campaign effectiveness, are compared to the variables that facilitated the landmine and MAI NGO policy campaigns, and the results show that the taxonomy's variables are consistent in both campaigns.