President Barack Obama's first state visit to Beijing could open a new era in United States's relations with China. As the two biggest economies in the world, the relationship is notoriously fragile.
Activists are calling on the US to take a tougher line with China on human rights, but there are also a range of other issues that call for US-China cooperation, including trade and protectionism, market access, and climate change.
What do you think is the most important issue President Obama will discuss with Chinese President Hu?
Share your thoughts below.