Throughout history, leaders had skin in the game when they declared war. they went into battle themselves and could die alongside their troops
That changed around ww1
Leaders could send millions to fight while staying safe at home in their capitals
But technology may be changing this again
Today, it’s mostly the more technologically advanced powers like Israel, US, etc using precision strikes against Iran, Hezbollah, and others to take out leadership
But as these weapons get cheaper, smaller, more accessible, leaders themselves may once again be directly exposed to the risk of death
ie, a sleeper agent can set up a $500 drone to attack a president or senior official