unentrenched

“How can they need reinforcements when they already have half the army directed against a weak, unentrenched Russian wing?”

War and Peace 2003

Redoubt was an advanced post — whereas in reality it was simply a fortified point on the left flank — and that the battle of Borodino was fought by us on an entrenched position previously selected, where as it was fought on a quite unexpected spot which was almost unentrenched.

War and Peace 2003

Had a flotilla of boats with two thousand men and a light battery landed that night at Legare's Landing, it is probable that Fort Johnson, unentrenched to the rear, would have fallen before day; and, within the limits of possibility, that before the following night the whole of James Island except the garrison of Secessionville and Fort Pemberton, which would have been cut off and isolated, would have been in their possession.

Memoirs of the War of Secession 1910

The Turks so far suspect nothing, and Koja Chemen Tepe and Chunuk Bair, with all the intervening ridge, are still unentrenched and open to capture by a _coup-de-main_.

Gallipoli Diary, Volume I Ian Hamilton 1900

But whereas, this very afternoon, our own eyes confirmed the aeroplane reports that Suvla Bay is unentrenched, weakly held and quiescent, only yesterday a division of the enemy were reputed to be busy along the whole of the coastline to the South of Besika Bay.

Gallipoli Diary, Volume I Ian Hamilton 1900

So far as can be seen by aeroplane scouting, this ridge is still unoccupied; certainly it is unentrenched.

Gallipoli Diary, Volume 2 Ian Hamilton 1900

Suvla Bay should be an easy base to seize as it is weakly held and unentrenched whilst, tactically, any troops landed there will, by a very short advance, be able to make Birdwood's mind easy about his left.

Gallipoli Diary, Volume I Ian Hamilton 1900

If Mahon wished to make a turning movement, then, I think, he would have been well advised to take it by the North where the ground over which he must advance was not only unentrenched and clear of brush, but also laid quite open to the supporting fire of the Fleet.

Gallipoli Diary, Volume 2 Ian Hamilton 1900

On the other hand, it seemed probable that a sudden march, eastward or westward, would find some passage of the river, and of the natural parapet beyond, unentrenched and but slightly guarded.

History of the War in South Africa 1899-1902 v. 1 (of 4) Compiled by Direction of His Majesty's Government Great Britain. War Office 1876

Shevardino Redoubt, the Russians fought the battle of Borodino on an open and almost unentrenched position, with forces only half as numerous as the French; that is to say, under conditions in which it was not merely unthinkable to fight for ten hours and secure an indecisive result, but unthinkable to keep an army even from complete disintegration and flight.

War and Peace Leo Tolstoy 1869