The leaders of China and Taiwan are holding talks for the first time since the Chinese Civil War ended in 1949.
The President Ma Ying-jeou in Taiwan and discussions between Chinese President Xi Jinping started at 15:00 local time (07:00 GMT).
China views Taiwan as a breakaway province which will one day be reunited with all the mainland, by force if necessary.
Both leaders entered the meeting room collectively and waved, grinning, to the scrum of photographers.
There were demonstrations from the discussions and one group tried to enter the parliament building in Taiwan.
Some Taiwanese feel China is developing a lot of sway in Taiwan.
Relations have improved under Mr Ma since he took office in 2008, with better economic ties, enhancing tourism connections, along with a trade pact signed.
The two sides split in 1949 when the Kuomintang establish a fresh government in Taiwan and lost in the civil war to the Chinese Communist Party.