After its defeat in World War II Japan was considered down and out. However in recent decades it has been arming up at an alarming rate. With its huge economy and educated population Japan, just like South Korea is a technological powerhouse. Though China may have the number's advantage the Japanese Self-Defence Forces are strong enough to stand their ground.
Population: 126.5 million
Defence Budget: 48.5 billion
Total Personnel: 305,000
The Japanese Ground Self-Defence Force is relatively small in comparison with the other branches. Its size is a result of the needs of the Japanese military. Due to being an Island nation with next to zero internal security problems, Japan would rather divert its attention to maritime and aerial superiority. That said, most of the equipment in the Japanese Ground Self-Defence Force is of excellent quality, an example being the domestically made Type 10 MBT.
Japan's Air Force continues to maintain a large fleet of advanced fighters. In addition to its F-15Js and F-2s, it is in the process of acquiring 135 F-35s. Once the F-35s are in the arsenal, the Japanese Air Self-Defence Force will be able to hold its own against the new Chinese stealth fighters.
Armed UAVs: 0
Attack Helicopters: 119
The most important branch in the Japanese military. The Japanese have a long and glorious naval history. This was born out of necessity. All nations which aren't landlocked can use their navy in order to keep threats well away from their borders. This is especially true for Japan. With its impressive fleet of destroyers and submarines the Japanese navy is a force to be reckoned with. Soon the Izumo-Class helicopter carriers will carry F-35Bs, meaning that the Japanese navy will be able to project power throughout the region.