While I don't seek to attack you for stating a fact, that could in the right context be helpful, I would like to state that what you said has nothing to do with my primary question.

Ok so I have found something that might work for your purposes, havent used it myself and there is only one instance of it being used in the entire game.

Its used when a race demands you remove a starbase and it calls the DestroyObject action.

<ListenerTrigger>
<OnEvent>OnConversationResponse</OnEvent>
<Target>
<TargetType>Starbase</TargetType>
</Target>
<Lifetime>Instant</Lifetime>
<PerformAction>
<Action>DestroyObject</Action>
</PerformAction>
</ListenerTrigger>

This could probably be used in a standard trigger with the TargetType set to Ship.

However it would need to be something interactable that triggers it such as the ship arrives at an anomaly or using OnCostructShip as otherwise there is no way I know of to hook the target specifically.

Hope that helps.

Another attempt to be helpful on starting a game. In a game that is not made to declare war right off the bat. If everyone started out with initial war technology. In modding you could tweak the trees. Create custom races. I don't know what it is called you could start everyone that gives them the personality to start out with free techs if no one starts out with free techs anymore. Assuming they don't you can change change everyone's priorities for military first then research second making the war tech that starts everything the initial techs. I always found the ai good at researching war techs if you threw it in their laps. This probably will require you to mad or custom everyone. The game is really made to give you time to build up your empire before war.