Which pr proficiency defines captivity models of prisoners of war peacetime government detention?

The correct answer is “preserve life.”

The Personal Recovery proficiency that defines Captivity Models of Prisoners of War, Peace Time Government Detention and Hostage Detention is “preserve life.”

When some element of the Department of Defense or a civilian is detained, missing or isolated in a military or foreign affairs operation, the government initiates a Personnel Recovery procedure under the supervision of the Joint Personnel Recovery Agency. The Personal Recovery proficiency that defines Captivity Models of Prisoners of War, Peace Time Government Detention and Hostage Detention is “preserve life”. Many of the times the government initiates diplomatic negotiations to bring the detained individuals back to its country of origin.  

One of the major purposes of the Schuman Plan, proposed in 1950, was to achieve lasting peace by "D. aligning European nations economically and politically". This desire was sprung from two devastating world wars, and although it ultimately failed, it eventually led to the European Union.