The inhabitants see, and are convinced of this, which makes each family afraid of standing in the gap of danger ; and by retreating, one behind another, they depopulate the country, and leave it to the enemy
That was not easy for him, for the English had brought the whole province of Connacht under their power, so that they were in possession of the impregnable forts and strongholds of the country and in the gaps of danger, viz., some of them in the castle on the bank of the ancient river which the flood left behind, called the Sligeach, and others of them in Ballymote, a strong fortress in the neighbourhood of the celebrated hill of Kesh of Corann the harper.
2002 Seamus Heaney, translation of Beowulf, line 1375:
The gap of danger where the demon waits is still unknown to you.
[...] he threw himself in the gap of danger, and, nobly maintaining his post; combated the direful prejudices as they successively arose, and, in despite of the accumulating horrors of the hour, said, like the Omnipotent unto the tide of ruin, " thus far thou shalt go, but no farther."