Black troops and their families suffered from several kinds of violence inflicted on them alone. The rebels had a habit of killing black troops after they had surrendered or been captured. Yet, black troops continued to join the army and support the Union cause in spite of this risk; they fought harder in combat. In addition African-American family members in the North faced violence themselves at home. But, in their case, their assailants were white northerners, such as in the 1863 race riots in Detroit on March 6th and the three-day riots in New York City on July 13th–16th. Blacks were killed and wounded in both riots, and their property was destroyed. Even with the threat of violence against them in the North as well as the South, northern blacks continued to enlist and support the Union war effort. African Americans remained loyal to the Union and to the cause.