tinderbox

noun
1
a box containing dry material, used in the past for lighting a fire
جعبه آتش‌زا
2
a situation that is likely to become dangerous
بشکه باروت, موقعیت خطرناک, وضعیت خطرناک, محیط مخاطره‌آمیز, موقعیت ناپایدار, منطقه پرخطر, شرایط بحرانی
It was clearly a tinderbox situation with demonstrators likely to become violent at any moment.