Republic of China (Taiwan) President Tsai Ing-wen has doubled down on her country's aim of uniting Asian democracies against mainland China while saying her country was ready for "meaningful dialogue" but on an equal footing.

Tsai delivered the twin messages, which are united by the aim of safeguarding Taiwan's national security, during ceremonies marking "Double Ten," or the country's National Day on Saturday.

In her speech, Tsai said it's clear democracy, peace, and prosperity in the Indo-Pacific face serious challenges from China. She pointed out countries in the region have forged alliances to protect their national security and democratic systems against "external influences." Unprecedented changes have resulted from countries pushing back against China's expansionism, she said.

"We must turn this testing time into a historical opportunity," according to Tsai. "Our commitment to our sovereignty and democratic values will not change, but we will also maintain strategic flexibility and be responsive to changes."

She said Taiwan will play an active role in establishing new regional and international orders.

"We will forge alliances based on shared values and friendly ties throughout the international community, and continue to enhance partnerships with like-minded and friendly nations," said Tsai.

"We will also participate more actively in regional and international multilateral cooperation and dialogues."

Tsai emphasized the most important values Taiwan stands for are upholding peace and promoting economic development.

"We want to be an advocate for the forces of good, and share our progressive and good faith values with the whole world."

Tsai then held out an olive branch to China. She believes "regional tension can surely be resolved" if China can heed Taiwan's voice, change the way it handles cross-strait relations, and jointly facilitate cross-strait reconciliation and peaceful dialogue.

She pledged Taiwan will not act rashly, noting that maintaining stability in cross-strait relations is in the best interests of both sides.

"At this stage, the most pressing cross-strait issue is to discuss how we can live in peace and coexist based on mutual respect, goodwill and understanding," she said.

"As long as the Beijing authorities are willing to resolve antagonisms and improve cross-strait relations, while parity and dignity are maintained, we are willing to work together to facilitate meaningful dialogue. This is what the people of Taiwan advocate, and it is a cross-party consensus."

On September 8, Tsai called for an alliance of democracies to defend against "aggressive actions" and protect freedom against China.

Tsai said Taiwan stands at the forefront of defending democracy from "authoritarian aggression." She also said defending regional peace and security needs collaborative efforts among other Asian countries.