Military balance: The US and other key countries

<bold>President Barack Obama has announced a future with a "leaner" US military.</bold>

The country was "turning the page on a decade of war" and faced a "moment of transition", he said.

Yet, although thousands of troops are expected to be axed, Mr Obama stressed that the country's military superiority would still be maintained.

Here is how the US's military might compared with that of other global powers in 2011.