Japan has had a long history of warfare, and its military capabilities have evolved over time. Its current military capabilities are made up of the Japanese Self-Defense Forces (JSDF) which consists of 247 000 active duty personnel supported by an additional reserve force numbering approximately 50 000 personnel. Japan also has strong alliances with other nations around the world and is part of regional security arrangements such as ASEAN Plus Three. The United States is an important ally that could potentially come to aid should there be any kind conflict involving Japan, and technology plays an important role when it comes to warfighting in Japan today. Thus, while not being able to engage in full out wars like before due to legal restrictions imposed upon them post WWII, they still possess considerable means through which they can protect themselves against external threats should any arise.