What is depleted uranium (radioactive) ammunition?

"Information revealed about a severe illness known as the ‘Gulf War Syndrome’ which spread amongst US Army veterans who were exposed to DU while using these weaponry, helped Iraqi researchers and Medical Doctors to understand the nature of the effect of these weapons, and the means required to investigate further into this issue.

DU is a chemically toxic and radioactive heavy metal produced as waste by the nuclear power industry"
https://www.globalresearch.ca/depleted-uranium-and-radioactive-contamination-in-iraq-an-overview/5605215

"Depleted uranium (DU) weapons were not just stored in Iraq, but also fired in Iraq. Between 1,000 and 2,000 metric tons of DU was fired in Iraq according to a 2007 report by the U.N. Environment Program."
https://www.foreignpolicyjournal.com/2019/09/21/new-study-documents-depleted-uranium-impacts-on-children-in-iraq/

"DU is a chemically toxic and radioactive heavy metal attractive to weapons designers because it is extremely hard and can pierce armour."
https://www.theguardian.com/world/2014/jun/19/us-depleted-uranium-weapons-civilian-areas-iraq

"depleted uranium (radioactive) ammunition, resulting in countless deaths attributable to the spread of leukemia among children, congenital malformations, breast cancer. etc."
https://www.globalresearch.ca/depleted-uranium-and-radioactive-contamination-in-iraq-an-overview/5605215

"the Pentagon said it would not use depleted-uranium munitions"
https://www.washingtonpost.com/news/checkpoint/wp/2017/02/16/the-pentagon-said-it-wouldnt-use-depleted-uranium-rounds-against-isis-months-later-it-did-5265-times/

Depleted uranium used by US forces blamed for birth defects and cancer in Iraq
https://www.rt.com/news/iraq-depleted-uranium-health-394/