The fighting has left tens of thousands of people, mostly civilians, dead.
In particular, a ferocious wave of pogroms against the Jewish population left tens of thousands dead.
Hundreds died last year in riots, which left tens of thousands of Rohingya in squalid camps.
The Afghan civil war has crippled the nations' communications and other infrastructure and left tens of thousands dead.
The 30-year conflict over independence for the province of Aceh had left tens of thousands dead and a bitter legacy of grave human rights abuses.
The American health care model, centered around employer-provided coverage, left tens of millions uninsured.
But it also led to a bloody insurgency involving the Sunnis, which left tens of thousands dead.
The conflict between Eritrea and Ethiopia left tens of thousands dead or injured in the space of just two years.
That left tens of millions of Americans with next to no options for coverage.
The U.S. polio epidemic in the 1940s and 1950s left tens of thousands of people paralyzed.
The brutal conflict, involving the military and Islamic militants, left tens of thousands of Algerians dead.
