It is correct and usable in written English.
You can use it to refer to a situation where a country was defeated in a war, such as in the sentence "The country was devastated when they lost the war."
"I didn't lose a war, and nobody died," he said.
How can it lose a war it won so decisively more than 44 years ago?
In the end, North Korea would lose a war, the generals and military analysts say.
Lyndon Johnson did not want to be the first American president to lose a war.
He did not want to be the first American President to lose a war.
"He would rather lose a war than lose a campaign," Mr. McCain said of his rival.
"He told them he would rather lose an election than see his country lose a war.
Mr McCain also keeps saying that Mr Obama would rather lose a war in order to win a political campaign.
While the lessons of colonial tyrants and human rights learned in Vietnam may have faded, the notion that America can lose a war has not.
No government could allow itself to lose a war that it would win if it were to re-produce nuclear weapons.
