Why do airport and flight rules exist?

Everyone follows these rules, but few know why. Each one traces back to an incident that changed aviation security.
The news, anew

Everyone follows these rules, but few know why. Each one traces back to an incident that changed aviation security.
News
A year after Gaza's ceasefire, Israeli attacks persist as settler violence disrupts West Bank's oil harvest.
News
Russian forces claimed to have struck a ship carrying military cargo to Ukraine’s Mykolaiv. The report has not been independently verified.
News
Two ships were hit in the attack, including the Ukrainian-owned Chelsea 3, which sustained damage.