More than 70 people were killed in the deadliest attack in which country?

Explanation

– Yemen experienced a deadly attack in which more than 70 people were killed, amid the ongoing conflict involving Houthi forces and other parties.
– Yemen has faced prolonged conflict and humanitarian crisis since its civil war escalated in 2014-2015.
– Various parties, including the Saudi-led coalition and US forces, have conducted strikes against Houthi targets during periods of the conflict.
– Yemen’s conflict has resulted in one of the world’s most severe humanitarian crises, with millions requiring assistance.