police hold drills at the borderer with mexicoco. by the end of the week there will be joined by over 5000 u.s. troops. >> we continue to adjust the numbers but know that is in addition to the 2092 that are already employed from the national guard. >> civil rights groups have denounced the moves as a waste of tax pair money into the to terrorize. been.s. resident has doubling down on his anti-immigration rhetoric. characterizing groups of migrants headed north as an invasion of the country. echoed by his supporters at republican campaign rallies. >> this is nothing short of an assault on our country and we will not allow it. >> mexican authorities have a struggling to deal with groups of migrants traveling north from honduras. one young man was killed in the standoff with police that block the border bridge. on monday, the group of several hundred migrants crossed the river into mexico. works andhe transportation. we didn't have the money to pay smugglers, so we decided to join the caravan. >> a larger caravan of 7000 people native t