Ecuador-Colombia trade war escalates with Ecuador implementing 100% tariffs and Colombia responding with 35-75% tariffs on ~190 products. Trade has collapsed dramatically at border crossings (Rumichaca Bridge dropped from 150 to 5 trucks daily), eliminating thousands of jobs and affecting rice, plantains, bananas, and shrimp exports. Both nations are leveraging critical infrastructure (energy sales suspension, medicine/pesticide supply cuts) as leverage amid drug trafficking disputes.