the Open Skies Treaty permits each state-party to conduct short-notice, unarmed, reconnaissance flights over the others' entire territories to collect data on military forces and activities.
The treaty is also aimed at building confidence and familiarity among states-parties through their participation in the overflights.
The full form of UPS is Uninterruptible Power Supply.
UPS is a type of power supply system with an integrated battery and in the absence of primary mode or when power is shut down, the battery is used for the power source.
Located on the north side of Jeddah, Saudi Arabia, it is planned to be the first 1 km (3,281 ft) tall building, and the centrepiece and first phase of a development and tourist attraction known as Jeddah Economic City.