Not sure if this is possible or how much backend coding would have to be done.

Let’s use alliance as an example. If clan a is about to go to war with clan b. Clan a could have a function where clan b cannot buy anything they put in the market and vice versa.

Think of it as a way of not supporting the person you’re at war with.

🫠

Different, but maybe similar to a previous idea:

https://www.earthempires.com/forum/post/1039275/perm

Suggestion:

New military action - Embargo - can dramatically increase the cost to buy off public and private markets. Multiple attackers can perform this attack with results adding; it acts like a PS (your military is gone for some length of time that the embargo is active - possibly requiring much more oil to "patrol"); and adds cost (like a tax, no players get the money) proportional to the power of units sent divided by the defense (capping out at some to be determined value - maybe like up to 5x the cost for 10x the power of attacker / defender?). You could make it use tanks or something to help provide more meaning to those units in a war while helping to provide a larger need for oil. It could also be used in non-team servers to help outgrow an opponent (but treated as a special operation for GDI purposes on primary and express). I'd imagine FA would not be impacted, mostly to reward team play (and it already has a time limit).