Washington: Presumptive Democratic presidential candidate Hillary Clinton called on Tuesday for an end to racism and gun violence in the US during her first joint rally with primary rival Senator Bernie Sanders, D-Vt., in New Hampshire. Just minutes after Sanders endorsed Clinton, the former secretary of state said trust and respect must be restored between police and communities to avoid more tragedies like the massacre in Dallas. "Surely, we can agree that weapons of war have no place on the streets of America," the 68-year-old Clinton said, according to EFE news agency. Clinton said she supported bias training and nationwide use-of-force guidelines for police officers to curb the "tragedy of black men and women and black children being killed in police incidents". The former first lady called on both the law enforcement community and civilians to "develop national guidelines for the use of force by police officers". "Our police should never have to face a madman, a racist, a person filled with hatred with an assault weapon. We owe it to every officer who puts his or her life on the line to protect us, so let's protect them," Clinton said. Five police officers were killed and seven others wounded during last week's shooting in Dallas. The attack took place during a peaceful Black Lives Matter protest over the fatal police shootings of two African-American men in Louisiana and Minnesota.