The Queen has talked about terrorist acts and natural disasters in her traditional Christmas message.
She praised the "quite remarkable" way that people responded to the Asian tsunami, the flooding of New Orleans and the 7 July bombings.
"This last year has reminded us that we live in a world which is not easy or safe, but it is the only place we have," she said.
The message was recorded in the Chapel at Buckingham Palace.
The Christmas Day broadcast is the Queen's only chance each year to say what she thinks, and not the opinions of the government.
She also asked for people of all faiths to work together "for the sake our own and future generations", she asked Christians to remember the birth "of the one we call 'the prince of peace'," meaning Jesus.