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A covering force is a self-contained force capable of operating independently of the main body, unlike a screening or guard force. A covering force, or portions of it, often becomes decisively engaged with enemy forces. Therefore, the covering force must have sufficient combat power to engage the enemy and accomplish its mission.
Screening is often done by reconnaissance units such as cavalry, which operate within range of supporting artillery.In contrast to a guard force, a screening force may consist of a scout platoon rather than a task force or squadron; and its mission is less ambitious, focusing on early warning to the main body rather than preventing enemy observation and direct fire on the main body.
A screen protector, yet to be installed A smartphone with a screen protector installed. A screen protector is an additional sheet of material—commonly polyurethane or laminated glass—that can be attached to the screen of an electronic device and protect it against physical damage.
Soldiers advancing under the cover of a smoke screen during a training exercise. A smoke screen is smoke released to mask the movement or location of military units such as infantry, tanks, aircraft, or ships. Smoke screens are commonly deployed either by a canister (such as a grenade) or generated by a vehicle (such as a tank or a warship).
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A Nokia N8 with a Gorilla Glass screen. Gorilla Glass, developed and manufactured by Corning, is a brand of chemically strengthened glass now in its ninth generation. Designed to be thin, light, and damage-resistant, its surface strength and crack-resistance are achieved through immersion in a hot potassium-salt ion-exchange bath.
With today's rising computer threats, your current antivirus software may not be enough to help stop new attacks. AOL Tech Fortress uses a unique, patented isolation and containment method to protect your most vulnerable software applications and directories against new viruses and malicious software that traditional antivirus software don't stop.
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