Diplomat and naval thinker
James Cable spelled out the nature of gunboat diplomacy in a series of works published between 1971 and 1993. In these, he defined the phenomenon as "the use or threat of limited naval force, otherwise than as an act of war, in order to secure advantage or to avert loss, either in the furtherance of an international dispute or else against foreign nationals within the territory or the jurisdiction of their own state." He further broke down the concept into four key areas: •
Definitive Force: the use of gunboat diplomacy to create or remove a
fait accompli. •
Purposeful Force: application of naval force to change the policy or character of the target government or group. •
Catalytic Force: a mechanism designed to buy a breathing space or present policy makers with an increased range of options. •
Expressive Force: use of navies to send a political message. This aspect of gunboat diplomacy is undervalued and almost dismissed by Cable. The term "gunboat" may imply
naval power-projection -
land-based equivalents may include military
mobilisation (as in Europe in the northern-hemisphere summer of 1914), the massing of threatening bodies of troops near international borders (as practised by
the German Reich in central Europe in the 1940s), or appropriately timed and situated military manoeuvres (
"exercises").
Distinctions Gunboat diplomacy contrasts with views held prior to the 18th century and influenced by
Hugo Grotius, who in
De jure belli ac pacis (1625) circumscribed the right to resort to force with what he described as "temperamenta". Gunboat diplomacy is distinct from "
defence diplomacy", which is understood to be the peaceful application of resources from across the spectrum of defence to achieve positive outcomes in the development of
bilateral and
multilateral relationships. "Military diplomacy" is a sub-set of this, tending to refer only to the role of military attachés and their associated activity. Defence diplomacy does not include military operations, but subsumes such other defence activity as international personnel exchanges, ship and aircraft visits, high-level engagement (e.g., ministers and senior defence personnel), training and exercises, security-sector reform, and bilateral military talks. ==Modern contexts==