Sentence examples for a siege from inspiring English sources

The phrase "a siege" is correct and usable in written English.
It can be used to describe a military operation where forces surround a place to cut off supplies or to refer to a prolonged period of difficulty or pressure.
Example: "The city endured a siege for several months, leading to severe shortages of food and medical supplies."
Alternatives: "a blockade" or "a prolonged attack".