The purpose of this paper is, first, to seek an answer for the question about what has been left behind in hemispheric security, given that the 21st Century has started with changes to the traditional security concepts developed during the previous century, and specifically any other concepts that are typical of the Post Second World War and Cold War eras. Secondly, to review the continent’s security scenario, and describe any causes for lack of security, based on the source and the way they are perceived by the different actors. This review shows that Latin Americans basically want a security system that provides them with Human and Individual Security, mainly through instruments and agencies, other than the Armed Forces, with capabilities to cover all other levels where security manifests itself, such as: Government Security and International Security, where the Armed Forces play a prominent role. Lastly, in order to seek a solution to meet the above requirements, the basics for a model is proposed, so that it may efficiently allow neutralizing any causes for lack of security by minimizing any sovereignty loss threats due to third-party interventionism, and based on existing instrument revitalization, aimed at adopting a flexible architecture supported by bilateral and multilateral relations designed to secure sub-regional and hemispheric agreements.