the.com/flashpoint

means A point or situation where tension suddenly erupts into conflict, violence, or crisis.

from Borrowed straight from chemistry and physics, where 'flash point' names the lowest temperature at which a liquid's vapors will ignite if a spark hits them — a precise, measurable threshold used since the 19th century in the study of fuels and flammable substances. By the 20th century, journalists and diplomats had seized the term for politics: a 'flashpoint' became any place or moment — a border, a protest, a single incident — combustible enough to ignite wider violence. The science supplied the precision; the metaphor supplied the drama.