Major attacks in Iraq since Jan. 1, when a new U.S.-Iraqi security pact took effect:

n March 8 – Suicide bomber strikes police academy in Baghdad, killing at least 28.

n March 5 – Car bomb tears through livestock market in Hillah, killing 13.

n Feb. 13 – Female suicide bomber targets Shiite pilgrims in Musayyib, killing 40.

n Feb. 12 – Suicide bomber blows herself up among Shiite pilgrims in Karbala, killing eight.

n Feb. 11 – Twin car bombs explode at a bus terminal and market area in Baghdad, killing 16.

n Jan. 4 – Female suicide bomber strikes Shiite pilgrims in Baghdad, killing 38.

n Jan. 2 – Suicide bomber hits luncheon at a tribal leader’s home in Youssifiyah, killing 23.