U.S., Mexican officials try to find common ground on security-sources

MEXICO CITY (Reuters) - A Mexican delegation met U.S. military officials in southern Mexico on Tuesday to discuss security initiatives, sources said on Wednesday, as the two countries try to find common ground in tough negotiations over trade, security and immigration.

The relationship between the United States and Mexico has become strained after U.S. President Donald Trump vowed to build a wall between the two countries to keep out illegal immigrants, drug dealers and criminals and make Mexico pay for it.