Use "perturbing" in a sentence

1. As unorthodox and perturbing as their presence here are, they have proved up to now to be of great benefit to us in Guadalcanal

2. It was normal, ordinary, and satisfactory; and the matter being settled and the proper first joy and sentiment felt, he could go on with more concentration than ever with his work, for there would not now be the perturbing moments so frequent in the last six months when his wife's condition, or rather negation of condition, had thrust itself with the annoyance of an irrepressible weed up among his thinking

3. A perturbing event has happened recently: a raid of a bookshop in central London, which ended with the four staff, who were there at the time, being beaten so badly that they all died from their injuries before medical treatment could save them

4. On one side, precision, foresight, geometry, prudence, an assured retreat, reserves spared, with an obstinate coolness, an imperturbable method, strategy, which takes advantage of the ground, tactics, which preserve the equilibrium of battalions, carnage, executed according to rule, war regulated, watch in hand, nothing voluntarily left to chance, the ancient classic courage, absolute regularity; on the other, intuition, divination, military oddity, superhuman instinct, a flaming glance, an indescribable something which gazes like an eagle, and which strikes like the lightning, a prodigious art in disdainful impetuosity, all the mysteries of a profound soul, associated with destiny; the stream, the plain, the forest, the hill, summoned, and in a manner, forced to obey, the despot going even so far as to tyrannize over the field of battle; faith in a star mingled with strategic science, elevating but perturbing it