JADE GAO/AFP via Getty Images
Russian Ministry of Defense/Screengrab via Telegram
Special Operations Forces of Ukraine/Telegram
TATYANA MAKEYEVA/AFP via Getty Images
Ramzan Kadyrov/Telegram
Lockheed Martin
KIRILL CHUBOTIN / Ukrinform/Future Publishing via Getty Images
UK Ministry of Defense photo
REUTERS/Valentyn Ogirenko
We traveled to the US Army Field Artillery School in Fort Sill, Oklahoma, to see what soldiers go through in their advanced individual training.
Located 90 miles southwest of Oklahoma City, Fort Sill is one of the 20 largest military installations in the world. It covers over 93,000 acres, and over 13,000 active-duty personnel are stationed at the base.