barrier materials

bill of materials (BOM) (logistics)

critical supplies and materials

expendable supplies and materials

hazardous materials (HAZMAT)

materials intelligence

Protocol on the Control of Firearms, Ammunition and other related materials

psychological warfare materials

radar-absorbent materials (RAM)

raw materials

explosive materials

surface modified materials

classified materials

value of the materials

information gathered from the materials

processing of materials

advanced materials wing

materials tester

Hazardous Materials Advisory Council

target materials

hazardous materials inspection drone

bacteriological materials

altitude barrier

antisubmarine barrier

barrier minefield

barrier plan

barrier restricted area

barrier system

barrier troops / blocking detachments (units) / anti-retreat forces

boom barrier (boom gate)

concrete barrier

portable vehicle-arresting barrier (PVAB)

sonic barrier