That conclusion prompted Afghan ministers to demand a review of international troops within its borders.

CNN: U.S. disputes Afghan civilian deaths

Nonetheless, after the Afghan government concluded its investigation, Afghan ministers demanded a review of international troops within its borders.

CNN: Top U.S. commander wants review of Afghan civilian killings

Afghan ministers on Monday demanded a review of international troops within its borders.

CNN: U.S. disputes 90 civilians killed in Afghan airstrike

Japan and the United States are discussing an extensive review of America's 47, 000 troops and numerous bases in Japan, as part of a global American defence overhaul.

ECONOMIST: Japan

Also under review would be the presence of U.S. ground troops in Kuwait.

CNN: U.S. eyes future bases in Iraq

Under the 2010 strategic defence review, the government announced it wanted to withdraw all 20, 000 troops in Germany, plus their families, by 2020.

BBC: Army bases to shut ahead of Germany troop withdrawal