The results of Sunday's general election in Japan could affect the country's defense policy and planned tax hikes to boost defense spending, which are opposed by many opposition parties.

With China increasing its military activities in the East China and South China seas, Russia continuing its aggression against Ukraine and North Korea reportedly sending troops to assist Russia in the war, the ruling and opposition parties share a recognition that Japan faces a tough security environment and call for enhancing deterrence.

China has increased its defense budget more than thirtyfold over the past 30 years, pursuing an opaque military expansion. Russia is increasing its joint military activities with China near Japan, and North Korea's nuclear and missile development is raising tensions on the Korean Peninsula.