India and China are the two most populous countries in the world, accounting for about 36% of the world's population. Together, they are home to roughly one out of every three people globally. India and China's combined GDP share of the world is approximately 22% to 28%, depending on the calculation method. Based on nominal GDP, China's share is about 18% and India's is 4%, for a combined total of around 22%. By Purchasing Power Parity (PPP), the combined share is even higher, at around 28%.

Militarily, India has been ranked as the fourth strongest military in the world, just after China, according to the Global Firepower Index, a platform that analyses data based on factors that determine a nation's war-fighting capability. China is the biggest spender on defence in Asia. India has about

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