In Sudan ... civilians have endured 16 months of a violent civil war. Last week, talks to end the war began in Switzerland, but only one of the two warring factions showed up. By the weekend, however, each side had taken a critical step. The armed group attending the talks agreed to enable the delivery of emergency aid to parts of the East African country where hundreds of thousands of people are at risk of starvation. About the same time, and seemingly independently, the other faction opened a vital border crossing for the same purpose. The mutual acknowledgment of the need to protect innocent life may have opened a door to solving one of the world's gravest crises. "These constructive decisions by both parties will enable the entry of aid needed to stop the famine, address food insecurity and respond to immense humanitarian needs," international mediators in Geneva said in a joint statement. Recent trends in conflict resolution, the International Committee of the Red Cross noted, have shown that protecting innocent civilians from harm "can have an impact on the success of peace negotiations and agreements, as well as on the chances for post-conflict reconciliation." Humanitarian gestures, the ICRC observed, helped the Colombian government build trust with guerrilla factions and strengthen compliance with a 2016 peace accord. More recently, two armed groups in the Democratic Republic of Congo signed a mutual pledge in March to respect and protect civilians caught in the vast African country's fragmented wars.