https://www.thebalance.com/cost-of-afghanistan-war-timeline-economic-impact-4122493
Cost to Veterans
The cost of veterans’ medical and disability payments over the next 40 years will be more than $1 trillion, according to Linda Bilmes, a senior lecturer in public finance at Harvard’s Kennedy School of Government. The cost of caring for war veterans typically peaks in the three or four decades after a conflict, she said.
More than 320,000 soldiers from Afghanistan and Iraq have traumatic brain injuries that cause disorientation and confusion, as of 2018. Of those, more than 8,000 suffered severe or invasive brain injuries, and more than 1,600 soldiers lost all or part of a limb. More than 138,000 have post-traumatic stress disorder. They experience flashbacks, hypervigilance, and difficulty sleeping.
On average, 20 veterans commit suicide each day according to a 2016 VA study. The Iraq and Afghanistan Veterans of America found that 47% of its members know of someone who has attempted suicide after returning from active duty
The war in Afghanistan is second only to the $4.1 trillion dollars (inflation-adjusted) spent during World War II.