The first one is explicit, the second one is implicit.
World War II was the deadliest military conflict in history in terms of total dead, with some 75 million people casualties including military and civilians, or around 3% of the world's population at the time. Many civilians died because of deliberate genocide, massacres, mass-bombings, disease, and starvation.
Answer:
A nation-state.
Explanation:
A nation-state is a sovereign polity or state that has a specific territory with clearly defined borders. It also has citizens, laws, and government that presides within that premise. In other words, a nation-state is when a whole nation has a state of its own, predominantly occupied by a single cultural section of people.
An example of a nation-state is Japan, China, North and South Korea, Portugal, etc.
