Sudan population 26 million
In 1998, USA bombed out the only pharmaceutical plant in the Sudan with subsequent loss of lives for lack of critical medicine.
Afghanistan population 13.5 million in 1979; population 24 million in 2001
In 1979, President Carter had CIA invade Afghanistan with Pakistan and Saudi secret services fund, arm and train mountain warlord armies of terrorists - later paid Osama bin Ladin's al Qaida ed al to attack popular women liberating socialist Kabul government and its Russian defenders. In 2001, Americans blitzed, invaded and murderously overthrew the Taliban government and occupied Afghanistan with a coalition included armed forces of every single nation of Caucasian population in the world.
Iran population 18 million in 1953; 38 million in 1980; 51 million in 1987
The CIA has publicly admitted that it was behind the notorious 1953 coup against Iran's democratically elected prime minister Mohammad Mosaddeq in its Operation Ajax. 200 to 300 Iranians were killed.
In 1980, Operation Eagle Claw failed to retrieve American hostages in US Embassy. One Iranian was killed. His truck was rocketed and destroyed.
Operation Nimble Archer was the 19 October 1987 attack on two Iranian oil platforms in the Persian Gulf by United States Navy forces. The attack was a response to Iran's missile attack three days earlier on MV Sea Isle City, a reflagged Kuwaiti oil tanker at anchor off Kuwait. The action occurred during Operation Earnest Will, the effort to protect Kuwaiti shipping during the American assisted, Saddam Hussain ordered, eight year long Iraqi invasion of Iran. Iran subsequently filed a lawsuit against the United States for reparations at the International Court of Justice. The Court ruled, by 14 votes to two, that the retaliatory attacks by the U.S. Navy against certain Iranian oil platforms in the Persian Gulf in 1987 and 1988 constituted an unlawful use of force.
Yemen population 27 million
"U.S. forces have conducted multiple ground operations and more than 120 strikes in 2017," [Statement, U.S. Central Command in Tampa, Florida. [The U.S. Has Helped Saudi Arabia Bomb Yemen for Almost Three Years. Congress Just Noticed , Slatest 11/14/2017] Nawar al Awlaki, age 8, was killed in an airstrike in Yemen ordered by President Trump. Since March 2015, bombings have so far caused more than 14,600 civilian deaths and injuries. Over three million people have been forced to flee their homes due to the bombing and fighting. 22 million people (75 percent of Yemen's population) need emergency aid, the greatest number in any country in the world. There is famine and 100,000 cases of cholera.[Oxfam, 4/2018] 
Korea 1950 population 30.2 million (North 11 million; South 19.2)
all 38 cities of North Korea and most cities in South Korea were bombed into utter destruction, USA announced intentions: 'fight communism.'
In 1905, USA recognized all Korea as Japanese Territory in return for Japanese recognition of Philippines as USA territory.
In September, 1945 US Army landed in the south, cut the peninsula in half, overturned democratic Korean government allowed by departing Japanese, declared martial law, flew in Syngman Rhee from Washington, arranged his election as president of 'independent' nation of South Korea. Rhee's secret police and special forces massacred 100,000 communists, socialists, unionists, farmer organizers, members of overthrown government and people who opposed the division of Korea, before the Northern army invaded the South [Documented by South Korea Legislature's Truth and Reconciliation Commission] When North Korean Army unified the peninsula in five weeks (as South Korean Army refused to fight their brothers of the North), US invaded again and bombed all cities flat, both North and South, before the Chinese entered and pushed US forces out of the North. US holds live fire exercises within ear shot of Pyongyang twice a year ever since.
Vietnam population 35 million:
USA dropped more than twice the bombs dropped in all of the Second World War in Europe, Asia and Africa on Vietnam. Millions of GIs took 'tours of duty' in Vietnam. In final body count, 15 Vietnamese are found to have died in their own country for each American who died there as an invader. USA announced intentions were to stop communism, but failed! Vietnam is still governed by its communist party today - pointless genocide.