In World History, a declaration of independence does exactly that: declare a country's independence from a mother country. For example, the United States declared independence from England, and Comoros declared independence from France.
The bombing of Hiroshima, with about 140,000 Japanese casualties.
I think it’s that US troops had to move and fight the enemy troops on the ground.
(I can’t see the except, but I know this of the Vietnam War) (the forestry was too dense for accurate positioning, so US troops had to fight the communist forces in guerrilla warfare on the ground)
I hope this is right!