On the planet's final frontier, more and more countries are beefing up their border guards. India became the latest country to boost its defense presence in space, announcing last week plans to develop a military space program to counter the fast-growing space defense efforts of neighboring China. India, which has an extensive civilian space satellite program, must "optimize space applications for military purposes," army Chief of Staff Gen. Deepak Kapoor said at a defense conference in New Delhi. "The Chinese space program is expanding at an exponentially rapid pace in both offensive and defensive content."