From the editorial direction

The PORTUGUESE JOURNAL OF MILITARY SCIENCES (ISSN: 2183-0835) is a double-blind peer-reviewed international journal, published twice a year, in May and November, owned and managed by the Military University Institute of Portugal (in Portuguese, Instituto Universitário Militar), who holds the copyrights.

The PORTUGUESE JOURNAL OF MILITARY SCIENCES is published in two versions, including a digital version is bilingual (Portuguese and English), The printed version integrates the manuscripts in the original language in which they are submitted, either Portuguese or English.

The PORTUGUESE JOURNAL OF MILITARY SCIENCES is published semiannually, in May and November, does not charge any fees, does not pay to the authors for the manuscripts nor the reviewers for their reviews, and does not have serve any purposes of direct marketing, commercial or equivalent advertising.

The aim of the PORTUGUESE JOURNAL OF MILITARY SCIENCES, within the space of a reputable peer-reviewed journal, is to achieve international recognition as a forum of trustworthy reflection, debate and dissemination of academic, scientific and research topics. 

The PORTUGUESE JOURNAL OF MILITARY SCIENCES expects to embrace all the global community, researchers, and scholars, as an international and trustful journal in the area of Military Sciences.

Open Access Statement: The PORTUGUESE JOURNAL OF MILITARY SCIENCES is an open access journal. The full texts of the manuscripts in this journal are freely available for consultation and download without charge.

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 Editor´s note:
With this issue of Portuguese Journal of Military Sciences (PJMS) and its translation into English, the Portuguese Journal of Military Sciences, the Military University Institute (IUM) continues its mission of publishing scientific studies in the field of Military Science.
The 19th issue of the PJMS contains four articles of high scientific value. As always, the articles were screened and reviewed by the journal’s Editorial Board and subject to a doubleblind peer review, a rigorous process used by all respected scientific journals, both national and international.
The first article, Somali piracy: from threat to regional shipping to international security problem, addresses an important topic in the field of Crises and Armed Conflict.
The other three articles discuss topics relevant to organizational and environmental
management in military contexts:
– Chemicals management in the military from the perspective of the circular economy;
– Optimising the Portuguese Air Force’s carbon sequestration potential;
– Measures to make the Portuguese Air Force a carbon neutral organization.
I wish our vast and diverse audience, the readers of the Revista de Ciências Militares / Portuguese Journal of Military Sciences, an enjoyable reading.
Lieutenant General António Martins Pereira
IUM Commander