The goal is to provide policy makers with "indicators" for a possible invasion — the factors that are driving Chinese decision-making — so US policymakers can determine the best course of action.
"There's a series of number-one issues with China," Cohen said. "Taiwan is definitely one of the number one issues with China we are focused on."
Former intelligence officials also speaking at The Cipher Brief conference suggested that an abrupt military takeover of Taiwan was unlikely, but that China would more likely follow the model used by Russia in its 2014 annexation of Crimea: a slow-rolling, undercover takeover at first followed by more overt military movements to solidify the reality on the ground.
Xi has also "undoubtedly concluded it is to his advantage when he decides to move on to Taiwan to coordinate those activities with Russians to complicate the United States problem with dealing with multiple crises," said Mark Kelton, a former CIA deputy director.
'Taiwan is going to be a test'
"Taiwan is going to be a test," said Norm Roule, former National Intelligence Manager on Iran. "Our resolve on China on Taiwan should be in question. People should say, 'If you didn't stand for Afghanistan, will you stand for other countries?'"
China has shown a broad willingness to test that resolve. Within the last few weeks, China has been sending record numbers of military aircraft into Taiwan's air defense identification zone (ADIZ), including fighter jets and early warning aircraft. The incursions did not violate Taiwan's airspace, which extends 12 nautical miles from the coast, but signaled a clear message about Beijing's intent.
"With the daily incursions into the air identification zone surrounding Taiwan, Xi is clearly signaling and testing Western resolve," said the CIA's former Deputy Director for Counterintelligence, Mark Kelton, at the conference.
On Tuesday, Secretary of State Antony Blinken called for Taiwan's "meaningful participation" in the United Nations, hailing the island as a "democratic success story." Even though Taiwan could participate as something less than a full member state, any such move to recognize Taipei would anger Beijing, which has made clear it views Taiwan as part of China.
"The fact that Taiwan participated robustly in certain UN specialized agencies for the vast majority of the past 50 years is evidence of the value the international community places in Taiwan's contributions. Recently, however, Taiwan has not been permitted to contribute to UN efforts," he said in a statement.
China's strenuous objections have kept Taiwan out of international organizations such as the World Health Organization (WHO). The US has maintained a policy of strategic ambiguity on Taiwan, declining to recognize the island's independence while also refusing to recognize Chinese sovereignty over Taiwan.
"Taiwan's exclusion undermines the important work of the UN and its related bodies, all of which stand to benefit greatly from its contributions," Blinken said.