March
March 19: The United States begins the invasion of Iraq; coordinating a satellite-guided Tomahawk cruise missile strike on Baghdad.[1] American, British, Australian, Polish, and Danish military operations begin; ground troops move into Iraq.[2]
Slow compared to what? In the second Iraq war it took like a month of softening up the country before they even put boots on the ground.
Wrong
https://en.wikipedia.org/wiki/Timeline_of_the_Iraq_War#March
March March 19: The United States begins the invasion of Iraq; coordinating a satellite-guided Tomahawk cruise missile strike on Baghdad.[1] American, British, Australian, Polish, and Danish military operations begin; ground troops move into Iraq.[2]