Ukrainian hacktivist groups

українські хакерські групи (хактивізм - використання комп’ютерів і мереж для досягнення політичних та ідеологічних цілей)

standing maritime groups of the NATO Response Force

Ukrainian Armed Forces

Ukrainian Cyber Alliance

have ties to extremist groups

organizational maintenance (O-level) (day-to-day work that standard airfield maintenance groups perform in support of airfield operations)

International legion for the Defence of Ukraine (ILDU) / International Legion of Territorial Defence of Ukraine / Ukrainian Foreign Legion

main groups of signal modeling methods

National Association of Ukrainian Defense Industries (NAUDI)