Achieving food security is a major challenge in both national and international agendas. Its meaning is to ensure food supply not only for a growing population, but also for people who are still suffering from hunger and malnutrition. To ensure food security, policies have been targeted across all the relevant areas, namely food availability, accessibility, utilization and stability. Some of the discussion examines how food production policies increase yield by optimizing productivity per area, reducing waste, and having governmental support for farming policies and technologies. More specifically, the discussions on food security are linked to three dimensions, closely related one another: food production, food trade and investment in food. In dealing with such issues, and in drafting public policies related to these issues, it is crucial to take into account different layers of governance. For example, the World Trade Organizations aims to have a balanced playing field for all member countries, where countries that have the means to subsidize are given stronger limits and countries that do not have the means are given more flexibility. The WTO also recognizes that liberalization is not the only path towards food security and that it will not automatically lead to a recovery of the food production in poor countries, but that liberalization should be accompanied by other internal policies, especially those concerning income distribution and farmer support.