Yasukazu Hamada (center) speaks at a meeting of the Liberal Democratic Party's Research Commission on Security on Wednesday at the party's headquarters in Tokyo. | JIJI

The ruling Liberal Democratic Party is poised to study a further hike in the country's security-related spending by taking account of initiatives of other nations and regional alliances, including a plan by NATO to increase such outlays to 3% to 5% of gross domestic product.

This is one of a draft set of issues that would be discussed as part of the government's plan to revise its three key security-related documents by the end of this year.

The draft was presented to Wednesday's meeting of the party's Research Commission on Security.…