How they are preparing is important. For example, China has built a modern navy in the last decade. Invasion is actually possible. Enough that people have been

How they are preparing is important. For example, China has built a modern navy in the last decade. Invasion is actually possible. Enough that people have been making predictions on it happening in next five years based on when China will be ready. The US has been focused on Iraq and Afghanistan and sort of neglected Navy and Air Force. The article is partly about the Marines completely changing strategy to fight China. Finally, Taiwan preparing for war is important. They haven't been preparing seriously until recently. They have forces for power projection while they need weapons for defense. Ukraine has shown that defense against superior opponent is possible.