Definition of "Cobra"

Boris Johnson was accused on Saturday of being “missing in action” after failing to attend a Cobra meeting to discuss the national heatwave emergency following predictions that thousands could die in the coming days.

2022 July 16, Mark Townsend, James Tapper, “Johnson skips emergency Cobra meeting as experts warn thousands may die in UK heatwave”, in The Observer‎

In the UK, a Cobra security meeting was called and in Estonia, which neighbours Russia, the prime minister, Kaja Kallas, said there was strengthened security on the border.

2023 June 24, Pjotr Sauer, Andrew Roth, “Putin accuses Wagner chief of treason and vows to ‘neutralise’ uprising”, in The Guardian‎