Ukraine is working on a homegrown air defense system to rival the US-made Patriot system, according to the commander in chief of its army.

Russia’s military on Tuesday said it would retaliate against Ukraine after Kyiv attacked Russian regions by firing six US-made ATACMS ballistic missiles, six UK-made Storm Shadow cruise missiles and launching one of the biggest drone attacks to date.

MOSCOW — Ukraine struck Russian regions with a major drone and missile attack overnight, damaging at least two factories and forcing schools to close in a major southern Russian city, according to Russian officials and media.

The Russians attacked Ukraine with 141 drones on the night of 19-20 January. Ukraine’s air defence has downed 93 drones, meanwhile 47 decoys disappeared from radar, including two that returned to the Russia-controlled territory.

The Russians attacked Ukraine using a new version of the popular Shahed-136 drones. According to the Defense Express portal, this marks the fourth known variant of Iranian drones employed by the Russian Federation's army.

Russian forces launched around 550 attack drones, nearly 60 missiles of various types, and more than 660 aerial bombs against Ukraine during the past week, President Volodymyr Zelensky said in his evening address on Jan.

On the night of Monday, January 20, the Russian army launched 141 drones of various types in Ukraine. The drones were flying from 5 directions, the Ukrainian Air Force said. On the night of January 20,