Yemen's Houthi rebels targeted two U.S. Navy warships with multiple drones and missiles as they were traveling through the Bab el-Mandeb Strait, but the attacks were not successful, the Defense Department said Tuesday.

Houthis attacked US vessels, which the Pentagon said included eight drones, five anti-ship ballistic missiles, and three anti-ship cruise missiles.

Electronic warfare-resilient drones and software integration will play a key role in the next phase of the Pentagon’s effort.

Batteries fuel the drone war, but some current U.S. drones rely on Chinese batteries. Ukrainian Wild Hornets show how any outfit can make their own drone batteries.

On the night of November 14, Russian terrorists launched an attack on Ukraine using 59 Shahed-type strike drones and other unidentified drones. Ukraine's air defense managed to shoot down 21 drones, according to the Air Force of the Armed Forces of Ukraine (AFU).

The U.S. says there will be a "firm response" as Ukrainian forces holding ground in Russia's Kursk region now face North Korean troops "engaging in combat."

The attack ended a two-month pause in missile strikes on Kyiv, which had only been hit by Russian drones during that period.

Russia attacked the Ukrainian capital Kyiv with a sophisticated combination of missiles and drones for the first time in 73 days on Wednesday, authorities reported, as the Pentagon said most of the North Korean troops sent to help Moscow’s war effort are fighting to drive Ukraine’s army off Russian soil in the Kursk border region.