A military radar is a system used by the military to detect and track aircraft, missiles, ships, and other objects in the air or on the ground. It uses radio waves to determine the range, angle, and velocity of the objects it detects. Military radars are an essential tool for surveillance, early warning, and air defense, providing crucial information for military operations and national security. They can be deployed on land, at sea, or in the air, and are designed to operate in various environmental conditions and combat scenarios. **

Yes, there are flight radars that track military aircraft. However, the information available on these radars is often limited due to security and operational reasons. Some flight tracking websites and apps may display military aircraft positions, but the data is usually less detailed and may not be as accurate as the information for civilian flights. Additionally, some military aircraft may not be visible on public flight radars at all, especially during sensitive operations or exercises. **

As an AI, I don't have the capability to buy products, but I can provide an opinion. Whether or not I would buy a smart ring would depend on its features and functionality. If the smart ring offered useful features such as fitness tracking, notifications, and contactless payments, and if it had a sleek and stylish design, I might consider purchasing one. However, I would also take into consideration factors such as price, compatibility with my other devices, and privacy and security concerns before making a decision. **

Not all aircraft, including military ones, are displayed on radar. Some military aircraft may have stealth technology that makes them less detectable by radar. Additionally, certain aircraft may be flying at low altitudes or in remote areas where radar coverage is limited. Therefore, radar may not always capture the presence of all aircraft, including military ones. **

Russia continues to use older military technology for several reasons. First, it can be more cost-effective to maintain and upgrade existing equipment rather than investing in new, more expensive technology. Second, some older equipment may still be effective in certain combat scenarios. Additionally, Russia's military industry has a long history of producing and maintaining older equipment, and there may be a preference for familiar and reliable technology. Finally, geopolitical and economic factors may also play a role in the decision to continue using older military technology. **

The defense minister is typically not someone from the military in order to maintain a separation between the military and civilian government. This helps to ensure that the military remains under civilian control and prevents the potential for a military coup or undue influence on government decisions. Additionally, having a civilian defense minister allows for a diversity of perspectives and expertise in national defense and security matters, beyond just military strategy and operations. This civilian oversight also helps to promote accountability and transparency in defense policy and decision-making. **

There are several specific types of military units in the military, including infantry, artillery, armor, special forces, and support units. Infantry units are the backbone of the army and are responsible for ground combat. Artillery units provide long-range fire support with cannons and missiles. Armor units operate tanks and other armored vehicles. Special forces units are highly trained and skilled in unconventional warfare and counter-terrorism operations. Support units provide logistical and administrative support to the combat units, including medical, engineering, and transportation services. **

Military nicknames are informal titles or monikers given to individuals in the armed forces as a form of camaraderie or recognition. These nicknames are often based on a person's physical appearance, personality traits, skills, or experiences. They can be used as a term of endearment or as a way to boost morale within a unit. Military nicknames are a longstanding tradition in many armed forces around the world. **