Modern-Aviation

10. Korea, Republic
- Military expenditure (2017): $39.2 billion
- Military expenditure as a % of general government expenditure (2017): 12.1% (#16 among countries)
- Military expenditure per capita (2017): $761 (#13 among countries)
Tensions between South Korea and its northern neighbor shaped much of the Republic's defense policy—and budget since the Korean Peninsula was divided at the end of the Korean War. A significant portion of the budget proposed in 2018 has been earmarked for efforts to increase cooperation between the two countries. President Moon Jae-in and North Korea's Kim Jong Un signed the Panmunjom Declaration after a summit in April last year and committed to halt in hostilities and denuclearization, though that goal remains elusive.

20. Singapore

- Military expenditure (2017): $10.2 billion
- Military expenditure as a % of general government expenditure (2017): 17.2% (#6 among countries)
- Military expenditure per capita (2017): $1,817 (#8 among countries)
Despite its small size, Singapore has one of the most advanced militaries in South East Asia. Its budget has remained steady in recent years despite cybersecurity threats and increased threats from terrorist organizations operating in the region, specifically ISIS and its affiliates. China's attempts to claim territory in the South China Sea are of concern to the nation-state, but the government has been careful not to let the conflict develop into outright hostilities.