To the 1960s, Sino-Soviet split, once again highlighted the pressure on the northern frontier of China, constrained by this "geopolitical contest between the U.S. line to maintain the coastal area in China, coastal security can not be effectively protected, Sea Island, loaded with more unable to rec

In the 1960s, the relations between China and the Soviet Union broke up, pressure on China's northern frontier, again highlighting the constraints of "Sino-US between geopolitical contest in China maintained close to the coast line along coastal security, lack of effective security, Sai Sha xternal

To the 20th century 60's, the Sino-Soviet relations burst, the northern China border area pressure highlights once again, “between China and America's geography contest line is maintained this restriction area the Chinese near bank, the coast cannot obtain the effective safeguard safely, the Xisha s

In the 1960 of the 20th century, the Sino-Soviet relationship breakdown, Al pressure on China again highlights, subject to the conditions of "between China and the GEO-line in China's coastal areas, coastal security is not effectively protected, Sai Sha substandard unable to recapture the island. To

To in the 1960 of the 20th century, Sue rupture, Al pressure on China again highlights, this restriction "geopolitical battle lines between China and maintain in China coastal area coastal security were not effective protection, Sai Sha unable to recapture territory island. To avoid the United State