Operating wallpaper on telephone / page 18

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Helicopter rescue operation at the volcano

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The black theme of the Windows operating system

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Windows 7 is a custom operating system of the Windows NT family

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The logo of the operating system on the computer

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Windows operating system logo on a black background

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The fox stands in the snow and looks at the operator

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The Philippine operation. World War II

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The image of military operations in languid tones

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A warship takes part in military operations

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The Russian tank is waiting for combat operations

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Military operations on the battlefield

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A soldier on a reconnaissance operation in the forest