There were times when foot soldiers usually decided w̵a̵r̵s̵ in a winner take all method which placed importance on the tactical intelligence of the commanders of the Armed Forces. There is currently a change in trend from having a ʙᴀᴛᴛʟᴇɢʀᴏᴜɴᴅ on land to having a combat field in the air.
The sky has undoubtedly become a battlefield and one of the ᴡᴇᴀᴘᴏɴs and instruments used in this modern ᴡᴀʀꜰᴀʀᴇ are flying robots. The term drone refers to any sized flying vehicle that can be operated remotely without the need for an onboard pilot.
Since the early 2000s, Air Forces worldwide have invested billions of dollars into this technology creating multiple aircraft to perform a wide range of missions. The US forces keep their assets and airspace safe by using several drones such as the RQ4.