Anti-tank dogs were dogs utilized in World War 2 that were trained to carry bombs to enemy tanks. This method was used by the Soviets in their desperate attempt against the Nazis

Sources

https://factschology.com/factschology-articles-podcast/russian-anti-tank-dogs-world-war-ii https://www.todayifoundout.com/index.php/2013/12/anti-tank-dogs-world-war-ii/ https://historyofyesterday.com/the-soviet-anti-tank-dog/