The US general set to take over command of American and NATO forces in Afghanistan said there may yet be 'significant changes' to the US war strategy in the country. <br /><br />At his confirmation hearing in Washington, General David Petraeus also warned that fighting is likely to get more intense in the coming months. <br /><br />Petraeus' nomination was approved and will move to a full Senate vote later this week. <br /><br />Al Jazeera's Patty Culhane report from Washington DC.<br /><br />[June 30, 2010]