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. **

Without more information about the specific situation, it is difficult to determine if it was self-defense. Self-defense typically involves using force to protect oneself from imminent harm or danger. It is important to consider the circumstances leading up to the incident and whether the use of force was necessary and proportional to the threat. Ultimately, a thorough investigation and legal analysis would be needed to determine if the actions taken were justified as self-defense. **

The situation described does not align with the typical definition of self-defense, which is the use of force to protect oneself from imminent harm. In this case, the person had already incapacitated the attacker and then continued to harm them, which could be seen as excessive force and not necessary for self-defense. Therefore, it could be argued that it was no longer self-defense once the attacker was no longer a threat. **

Military service has been a part of human history for centuries, with evidence of organized military forces dating back to ancient civilizations such as the Roman Empire and ancient China. In modern times, compulsory military service was introduced in various countries during the 19th and 20th centuries as a way to build and maintain strong armed forces. The specific dates of when military service was introduced vary by country, with some implementing it during times of war or national emergency. **

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. **

Edward Snowden was able to uncover the surveillance because of his position as a contractor for the National Security Agency (NSA), which gave him access to classified information and systems. As a systems administrator, he had high-level privileges that allowed him to collect and download a vast amount of data without being detected. Snowden's technical expertise and knowledge of the NSA's inner workings enabled him to understand the extent of the surveillance programs and the potential violations of privacy rights. **

Yes, the NATO collective defense clause, known as Article 5, was invoked for the first time in the alliance's history following the September 11, 2001 terrorist attacks in the United States. This decision was made in response to the attacks and demonstrated NATO's commitment to standing together in the face of a common threat. The invocation of Article 5 led to NATO member countries providing support and assistance to the United States in its efforts to combat terrorism. **

I cannot accurately determine if your actions were self-defense without more information about the situation. Self-defense generally refers to using reasonable force to protect oneself from harm when faced with an imminent threat. If you felt that you were in immediate danger and used force to protect yourself, it may be considered self-defense. However, the specific circumstances of the situation would need to be evaluated to make a determination. **