accident environment
аварійна ситуація
contemporary operational environment / contemporary operating environment (COE)
operational environment (OE) (obsolete, see `operating environment`)
aircraft accident (flight accident; aircraft mishap)
aircraft accident / flight accident, aircraft mishap
aircraft mishap / flight accident, aircraft accident
flight accident / aircraft accident, aircraft mishap
Allied Joint Doctrine for Recovery of Personnel in a Hostile Environment (AJP-3.7)
common operating environment (COE)
Environment and Security Initiative (ENVSEC) UN-OSCE-NATO initiative