Revision with unchanged content. On paper, international HIV/AIDS policy appears to be well-coordinated. The Millennium Development Goals set specific, time-bound targets for HIV/AIDS. Various global health partnerships, e.g. UNAIDS, coordinate the work of public, private and civil society sector actors. In reality, however, very little coordination between the multitude of actors takes place. This study provides recommendations to one of these actors - the German Federal Health Ministry - for positioning itself in Eastern Europe, in particular in the Ukraine, the Russian Federation and Estonia. A particular focus is placed on different coordination mechanisms, whereby the benefits and costs of the coordination strategies are analysed in terms of their effectiveness, efficiency and sustainability. The study concludes that different countries not only require different HIV/AIDS policies, but also require different coordination strategies. Estonia, Russia and the Ukraine require not only different policies in terms of the comprehensiveness of policies. Engagement in the three countries also needs to differ with regard to the time horizon (short or long term) and whether existing networks can or should be used.