The problem remains the principle of State sovereignty and it becomes a limiting factor in processes of international cooperation. At the same time, the impact of these threats in different countries of the region varies according to structural, geographical and social characteristics of each of the States. Because of this generate different perceptions against these threats; for some they may have one global impact for others local impact; for others it may be a defense problem or a problem of security. Increasing the risk of that is militarice all the problems that have been identified by the countries of the region and which therefore don’t give a multidimensional response but force. The armed forces of the countries in the hemisphere, have had to reorient their traditional missions in order to fulfill other tasks entrusted by the different States. You can see the case of Colombia where military forces carried out military operations against drug trafficking. Today the intervention of the armed forces before these new threats; generates a greater challenge improve their adaptability, know how to manage the financial resources earmarked for the defense, improve the training of human resources in order to specialise them; improve the structure of the national defence system and promote cooperation intra and Interstate with only objective meant to reduce resistance and prevent the emergence of new threats. To coincide at the regional level that these new threats to hemispheric security have a multidimensional scope; in their asymmetric nature makes difficult its identification and neutralization; and, finally becomes priority to tackle it, arises the following questions, which we will develop in the following articles: is it imperative to extend, modify and/or update the traditional mechanisms of hemispheric security into new more flexible, creative and effective approaches? The armed forces in the region, should continue intervening against the threat generated by drug trafficking in the stability of democracy and security in the Region, although their traditional missions do not prevent it? Original author and source of the article..