The vigil will be held at 6:30 p.m. Monday at the memorial, which sits on the corner of Deer Hill and Oak Hill roads, across from the Lafayette Bay Area Rapid Transit station.
Jeffrey Heaton, co-founder of the memorial, began planting crosses on the hillside two years ago with the goal of building one cross for every soldier killed in Iraq.
Last week, volunteers started building crosses for soldiers killed in Afghanistan as well, Heaton said. There are now more than 4,000 crosses on the privately owned hillside.
The vigil is sponsored by The Crosses of Lafayette, Mt. Diablo Peace and Justice Center, Lamorinda Peace and Justice Group and the Buddhist Peace Fellowship.
KPFA Radio host Aimee Allison is scheduled to speak at the event, Heaton said.
