How to use "groups" in a sentence

But neither can two great and powerful groups of nations take comfort from our present course - both sides overburdened by the cost of modern weapons, both rightly alarmed by the steady spread of the deadly atom, yet both racing to alter that uncertain balance of terror that stays the hand of mankind's final war.

Jaborski, the scoutmaster, had taken other groups of scouts on winter survival hikes every year for sixteen years, and no one had been even slightly injured

Nearly everyone was engaged in animated conversations, couples and cozy groups of friends, enjoying themselves, looking forward to the remaining three days of the four-day holiday.

The common was now covered with small groups of people

You can see the quiet expectation, the officers watching, the gunners waiting with their horses, the groups of local people standing as near as they were allowed, the ambulances and hospital tents with the burnt and wounded from Weybridge

Around the mouth were sixteen thin, whip-like tentacles, arranged in two groups of eight