John Sweeney

Criminal investigation and detection (1)

Engineering applications of polymers and composites (1)

Geopolitics (2)

History (1)

History and Archaeology (1)

Human trafficking (1)

Industrial chemistry and chemical engineering (1)

Industrial chemistry and manufacturing technologies (1)

Materials science (1)

Mechanical engineering and materials (1)

Military history (1)

Military history: post-WW2 conflicts (1)

Other warfare and defence issues (1)

Plastics and polymers (1)

Political structure and processes (1)

Political structures: totalitarianism and dictatorship (1)

Politics and government (3)

Social and ethical issues (1)

Social services and welfare, criminology (1)

Society and culture: general (1)

Society and Social Sciences (4)

Specific wars and campaigns (1)

Technology, Engineering, Agriculture, Industrial processes (1)

True crime (2)

True stories: general (4)

True war and combat stories (1)

War crimes (1)

Warfare and defence (1)

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