Fun fact, only one trebuchet has ever been deployed for combat in the new world.
The conquistadors and coalition forces built one during the siege of Tenochitlan, they tried to fire it but the sling snapped, rock went up, rock came back down.
Thus ended the storied military record of trebuchets in the new world.
Perhaps this should be decreed in a new Geneva convention as the only allowed long range missile system? That would make wars less deadly and more useful.