Tensions in the Taiwan Strait are at their highest in years as China continues to ratchet up pressure on Taiwan.
Chinese military aircraft have flown over the Taiwan Strait in the recent days.
China also called a high level U.S. State Department official's visit to the island last week a "political provocation".
"China has always firmly opposed official exchanges between the U.S. and Taiwan in any form."
In response to China's recent show of force, Taiwan's President Tsai Ing-wen on Tuesday visited a military base on one of Taiwan's outlying islands.
Tsai praised the air force pilots for intercepting the Chinese jets that approached the island last week.
She stressed that Taiwan has the "ability" and "resolve" to safeguard its territory.
"I know that we are having to face the provocations of the People's Liberation Army's fighter jets surrounding Taiwan and their actions in disturbing the area's peace. Our national army officers and soldiers are absolutely capable and determined to defend the country and safeguard regional peace."
Taiwan has also accused China of threatening peace, and is urging other countries to join its condemnation of Chinese incursions into its air defense identification zone.
"We call on the international community to face up to the fact that Chinese military planes continue to cross the Taiwan Strait center line."
But tensions are not likely to be resolved any time soon for the U.S. is likely to strengthen ties with Taiwan, and Taiwanese officials could also visit the U.S.
Some analysts predict China may threaten economic retaliation against Taiwan, if Taiwan and the U.S. continue cooperation.
Kim Jae-hee, Arirang News.