The situation in Afghanistan is increasingly perilous, President Barack Obama warned Friday as he unveiled a new US strategy to defeat the Taliban and Al-Qaeda insurgency. "The situation is increasingly perilous. It has been more than seven years since the Taliban was removed from power, yet war rages on, and insurgents control parts of Afghanistan and Pakistan," Obama said. "Attacks against our troops, our NATO allies, and the Afghan government have risen steadily. Most painfully, 2008 was the deadliest year of the war for American forces." He warned that Al-Qaeda was plotting new attacks on the United States from Pakistan and called on Islamabad to be a stronger partner in flushing the militants out of their safe havens.