In medieval times, frequent attacks by Mongols posed a permanent threat to the settled population.

Further, gangs have become a permanent threat particularly to females on the border.

Australian shooters regard their sport as under permanent threat from increasingly restrictive legislation.

That would present the permanent threat of a war the West could not win.

A more permanent threat to the festival is posed by the vagaries of financing.

In the meantime, the war demanded so many of its forces that the Company had to operate under a permanent threat of bankruptcy.

It was deemed a permanent threat by the rulers of Egypt.

In that sense, some Japanese are resigned to living with a permanent threat of quakes.

But neither of those species classifies all the other races as a permanent threat.

"The Government has been incapable of protecting even parks and natural reserves under permanent threat," he said in his party nomination speech this month.