The US has sent Ukraine millions of 155mm rounds since the war started, including cluster bombs. But there's a global shortage of 155 shells, and some are afraid that the US is depleting its stockpile. We visited the Scranton Ammunition Plant to see how common shells are made. 0:00 Intro 0:52 Why 155s are so important in Ukraine 2:40 How 155mm shells are made 4:20 History of 155mm shells 4:53 Other expensive weapons NATO has sent Ukraine 5:51 How America is sending cluster bombs during shortage MORE BIG BUSINESS VIDEOS: Why Coconut Farmers Risk Their Lives To Feed The World's Superfood Obsession | Big Business https://www.youtube.com/watch?v=vEA8HpR_Azw How Tabasco Fills Up To 700,000 Hot Sauce Bottles A Day | Big Business | Insider Business https://www.youtube.com/watch?v=hqBKJF7tE_k 23 Fascinating Jobs Around The World | Big Business | Insider Business https://www.youtube.com/watch?v=RThSD70hiTg ------------------------------------------------------ #ukraine #weapons #insiderbusiness Business Insider tells you all you need to know about business, finance, tech, retail, and more. Visit our homepage for the top stories of the day: https://www.businessinsider.com/ Insider Business on Facebook: https://www.facebook.com/businessinsider Insider Business on Instagram: https://www.instagram.com/insiderbusiness Insider Business on Twitter: https://www.twitter.com/businessinsider Insider Business on Snapchat: https://www.snapchat.com/discover/Business_Insider/5319643143 Insider Business on TikTok: https://www.tiktok.com/@businessinsider Inside the US Factory Making Ukraine’s Most Important Ammo | Big Business | Insider Business