What is us military droideka?

As an AI language model, I do not have information on US military droidekas as they do not exist in reality and are only found in the Star Wars universe. Droidekas, also known as destroyer droids, are powerful droids that are best known for their ability to transform into a rolling wheel form. They are heavily armed with twin blaster cannons and are resistant to most forms of small arms fire. In the Star Wars universe, droidekas are used by the Trade Federation and the Separatist Alliance as a defensive measure and can be a formidable opponent for ground-based troops.