President Donald Trump's migration crackdown has been credited with reducing flows northward towards the United States, but it is leaving hundreds of thousands of migrants and asylum seekers trapped in limbo further south, unsure whether to take riskier journeys to try to reach the US and anxiously wrestling with what to do next.

Human Rights Watch (HRW) published a report March 19 urging Mexican authorities to conduct a "thorough" and "impartial" investigation into an apparent mass killing site outside the city of Guadalajara, in Jalisco state.

According to the report, a local collective called the Jalisco Search Warriors on March 5 uncovered uncovered the site on an isolated ranch, where they found "bone fragments…hundreds of shoes, clothing items, charred human remains, and three underground ovens..."  The discovery was made while attempting to locate missing individuals or their remains, with local citizens organizing the effort in the absence of a sufficient response by the authorities.

Mexico has launched a massive deployment of 10,000 troops to cities and towns on the border with the United States. Videos and photos posted on social media by Mexico's Secretariat of National Defense (SEDENA) showed military and National Guard troops lined up boarding transport planes and rows of army trucks rolling out in the predawn darkness Feb. 4 from bases in Mexico City, Tlaxcala and other cities. Large contingents were also mobilized to Mexico's southern border in the Yucatan. The response—dubbed "Operativo Frontera Norte"—is part of an agreement reached the previous day between US President Donald Trump and Mexican President Claudia Sheinbaum postponing trade tariff threats for a month. (El Paso Times, Peninsula360)

During his first days back in office, Donald Trump rapidly started implementing his hardline migration agenda, including by declaring a state of emergency at the US southern border. The move allows his administration to access billions of dollars to expand the building of a border wall and to deploy the military and national guard to the area. Around 1,500 active duty soldiers are already being deployed. Trump also reinstated the controversial "Remain in Mexico" program from his first administration. This policy, which requires people to wait for asylum appointments in Mexico, helped to create a now-perennial humanitarian crisis in northern Mexico. The Trump administration has also shut down CBP One—a cell phone app for scheduling asylum appointments—leaving thousands of people stranded in Mexico, and suspended the US refugee resettlement program, as well as cancelling travel plans for refugees who had already been approved to enter the country. Trump's promised mass deportation of millions of undocumented people has yet to get underway, but his administration has begun laying the groundwork for expanded immigration raids—potentially including on schools, churches, and hospitals—and has threatened to prosecute any local officials who don't comply.

Mexico will step up efforts to deport asylum-seekers and migrants to their countries of origin in order to "depressurize" northern cities bordering the United States, the country's National Migration Institute announced Sept. 22 following a meeting with US officials. The number of people crossing the US-Mexico border has spiked again in recent weeks after a lull that followed the end of pandemic-era asylum restrictions and the introduction of new deterrence policies in May. It is unclear when the deportations will begin because Mexico will first have to negotiate with Venezuela, Brazil, Nicaragua, Colombia, and Cuba to make sure they accept their nationals. US cities, such as El Paso and Eagle Pass in Texas, have been scrambling to find shelter space as thousands of people have crossed the border on a daily basis in recent weeks, overwhelming reception capacity. Thousands are also still choosing to wait in northern Mexico while trying to make appointments using a government cell phone application to enter the United States and lodge asylum claims.

President Joe Biden is temporarily deploying 1,500 soldiers to the US-Mexico border ahead of the end of a pandemic-era entry restriction known as Title 42 on May 11. The soldiers are to perform administrative tasks, but critics say the move sends the message that migration is a threat. Tens of thousands of asylum seekers and migrants currently stranded in dire conditions in northern Mexican border cities by US policies are growing increasingly desperate and frustrated. More than 15,000 people—mostly from Venezuela—crossed the border in the vicinity of Brownsville late last month, overwhelming shelter capacity. And in El Paso, nearly 2,000 people who recently crossed the border are sleeping on sidewalks in the city center. The Biden administration has introduced a number of policies aimed at extending asylum restrictions at the border and curbing migration. The administration reached a deal with Mexico on May 2 that for the first time allows the US to deport non-Mexicans who enter the country irregularly back across the border.

President Joe Biden on Jan. 5 announced that the US is to extend a parole program previously offered only to migrants from Venezuela to those from Cuba, Nicaragua and Haiti, allowing them to apply for residency—but reiterated that his administration will continue to enforce Title 42, in compliance with a recent order from the Supreme Court. In fact, under his new policy, Title 42 expulsions are to increase, with Mexico agreeing to accept expelled Cubans, Nicaraguans and Haitians. A provision of the Public Health Service Act allowing for summary expulsion of migrants at the southern border, Title 42 has been in effect pursuant to a Centers for Disease Control order of March 2020 as a COVID-19 emergency measure.

Gunfire and explosions were reported from the Mexican border town of Nuevo Laredo in the early hours of March 14, following the arrest of a local gang leader by federal police and army troops. Juan Gerardo Treviño, also known as "N" or "El Huevo" (The Egg), is said be leader of the Tropas del Infierno (Troops of Hell), paramilitary arm of the Cartel del Noreste (Northeast Cartel), an offshoot of the notorious Zetas. Facing charges both sides of the border, he was nonetheless turned over to US authorities, apparently because he is a US citizen. He was handed over at a border bridge in Tijuana, far to the west of Nuevo Laredo, presumably to avoid attempts to free him. In the outburst of violence that greeted his arrest in Nuevo Laredo, the city's US consulate was hit with gunfire. Gang members also closed off streets with burning vehicles, attacked army outposts, and lobbed grenades at buildings. (Laredo Morning Times, Border Report, AP, La Jornada)