Story highlights The military package consists almost exclusively of defensive weapons

China views Taiwan as part of its indivisible territory

(CNN) Despite strong opposition from China, the Obama administration authorized a $1.83 billion weapons sale to Taiwan Wednesday, marking the first U.S. arms shipment to the island in four years.

Consisting almost exclusively of defensive weapons, the military package includes two U.S. Navy guided Oliver Hazard Perry class missile frigates, amphibious assault vehicles, and anti-aircraft and anti-ship systems, according to David McKeeby, a spokesperson for the U.S. Department of State's Bureau of Political-Military Affairs.

"U.S. arms sales to Taiwan are guided by the Taiwan Relations Act and based on an assessment of Taiwan's defense needs," McKeeby said.

"Our longstanding policy on arms sales to Taiwan has been consistent across six different U.S. administrations," he added. "We believe our consistent policy has contributed to the security of Taiwan, and has also supported the maintenance of peace and stability across the Taiwan Strait."

Taiwan welcomed the announcement of the sale, calling it "a comprehensive display of America's pledge to provide security to Taiwan," according to a statement.

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