{"id":420062,"date":"2026-01-21T04:03:14","date_gmt":"2026-01-21T04:03:14","guid":{"rendered":"https:\/\/www.newsbeep.com\/us\/420062\/"},"modified":"2026-01-21T04:03:14","modified_gmt":"2026-01-21T04:03:14","slug":"trump-wants-to-send-troops-into-mexico-the-land-grab-of-the-mexican-american-war-makes-this-politically-untenable","status":"publish","type":"post","link":"https:\/\/www.newsbeep.com\/us\/420062\/","title":{"rendered":"Trump wants to send troops into Mexico. The land grab of the Mexican-American War makes this \u2018politically untenable\u2019"},"content":{"rendered":"

After the United States government celebrated the capture of Nicol\u00e1s Maduro in Venezuela, President Donald Trump issued warnings about what might come next. \u201cSomething will have to be done about Mexico<\/a>,\u201d he said. \u201cAmerican dominance in the Western hemisphere will never be questioned again.\u201d <\/p>\n

The US government has subsequently pushed for US forces to accompany their Mexican counterparts<\/a> in operations targeting fentanyl production. But the history of US military intervention in Mexico makes the presence of foreign troops, under any pretext, politically untenable. <\/p>\n

The arrival of US troops in the past has signalled political instability, suffering for ordinary people, and in the most extreme case, massive loss of territory. Before the one-sided Mexican-American war of 1846\u201348, most of what is today the states of California, Nevada, Utah, Arizona and New Mexico had been part of the newly independent Mexican republic.<\/p>\n

The second Trump government\u2019s realignment of security policies<\/a> includes an aggressive reboot of the 19th-century \u201cMonroe Doctrine<\/a>\u201d, which projected influence across the western hemisphere. Trump likes to call the updated version the \u201cDonroe Doctrine<\/a>\u201d, and it dispenses with any pretense of hemispheric solidarity.<\/p>\n

The embrace of this doctrine has people and governments throughout the western hemisphere on edge. Even during so-called isolationist periods in US history, parts of Latin America have faced frequent US military interventions.<\/p>\n

\"\"<\/a><\/p>\n

A protest in Mexico City this month against US military intervention in Venezuela \u2013 and Trump\u2019s threats to launch attacks in Mexico.
\n Sashenka Gutierrez\/AAP<\/p>\n

Gunboat isolationism<\/p>\n

The \u201cMonroe Doctrine\u201d started not with a bold declaration to the world, but with a routine address by President James Monroe<\/a> to the US Congress in 1823. Throughout the Americas, newly independent states were emerging from European rule. The doctrine stated that any attempt to oppress or otherwise control newly independent states would be viewed as \u201cthe manifestation of an unfriendly disposition toward the United States\u201d.<\/p>\n

\"\"<\/a><\/p>\n

Trump has updated the Monroe Doctrine with the \u2018Donroe Doctrine\u2019.
\n Louis Dalrymple\/Wikipedia<\/p>\n

This doctrine is often seen as an expression of US isolationism. Suspicious of the European powers, the US sought autonomy to develop on its own. It would keep out of European affairs (which it was already largely doing), but wanted the same from European imperial powers \u2013 some of which were already in decline.<\/p>\n

The Monroe Doctrine was aspirational at best. The US lacked the political appetite or military capacity to actively protect its regional neighbours. Two years after Monroe initiated the policy, French warships returned to the capital of independent Haiti, coercing the government into agreeing to pay massive reparations to the former colonial power<\/a>. The US did not intervene.<\/p>\n

When French warships blockaded and then raided the Mexican port of Veracruz in 1838 \u2013 seeking exorbitant reparations for losses incurred by French citizens \u2013 the US did not intervene. The US did, however, send a ship to police the gulf waters<\/a> and prevent smugglers from circumventing the French blockade.<\/p>\n

Despite the \u201cunfriendly disposition\u201d shown by European gunboat diplomacy, the Monroe Doctrine showed little indication of delivering on its stated hemispheric commitments. <\/p>\n

As its territorial ambition and military capacity grew, the US assumed a more active role within the hemisphere. This regional intervention looked a lot like the gunboat diplomacy practised by former colonial powers.<\/p>\n

\"\"<\/a><\/p>\n

As its territorial ambition and military capacity grew, the US assumed a more active role within the hemisphere, including Mexico.
\n Gregory Bull\/AAP<\/p>\n

The one-sided Mexican\u2013American War<\/p>\n

When Monroe announced his doctrine, the US was made up of just 24 states, plus large expanses of unincorporated territory. <\/p>\n

By the 1840s, the US was eager to push westward and acquire new territories. James Polk won the presidency in 1844. The following year, he made good on his pledge to annex Texas<\/a>, which already claimed independence from Mexico.<\/p>\n

He also made diplomatic moves to acquire territories further west by negotiation<\/a>. He offered US$5 million for New Mexico (which included what today is Utah, Nevada and parts of other states) and $25 million for California. He also prepared land and naval forces, in case he needed to take the territories by force.<\/p>\n

The young Mexican state, first established in 1821, was in the midst of political tumult. The government at any particular time faced weak domestic authority, but clear nationalistic demands to preserve the territory and honour of the young country. <\/p>\n

When Mexico would not negotiate on Polk\u2019s terms, US troops moved into the coveted territories<\/a> of New Mexico and then California. Mexican state presence in these areas was weak at best; there was little sustained opposition to the US occupation.<\/p>\n

\"\"<\/a><\/p>\n

General Scott\u2019s entrance into Mexico in the Mexican\u2013American War.
\n Adolphe Jean-Baptiste Bayot\/Wikipdia<\/p>\n

The question of how to formalise these conquests brought the war into the very heart of Mexico. US forces landed at the port of Veracruz (as French forces had done ten years earlier). From there, the invading force fought a series of battles, eventually occupying Mexico City<\/a>, the political and symbolic centre of the Mexico, in 1847.<\/p>\n

The occupation of Mexico brought further negotiations on very different terms. The US acquired the entire claimed territory. It paid US$15 million in compensation (equivalent to almost US$500 million today<\/a>) \u2013 roughly half the amount offered before the war. <\/p>\n

Mexico lost 55% of its total territory<\/a>.<\/p>\n

A new threat of US military intervention<\/p>\n

While Venezuela has long been one of the main US antagonists in the region, Mexico and the US enjoy a much closer and more productive relationship. The US and Mexican economies are tightly integrated. <\/p>\n

In 2025, Mexico became the largest export market for the US<\/a>. The two governments cooperate across a wide range of issues and later this year, Mexico and the US, along with Canada, will co-host the FIFA World Cup. In the nativist world view of Trump and his close advisors, however, Venezuela and Mexico are seen as two sources of the same core issues: migration and illicit drugs.<\/p>\n

\"\"<\/a><\/p>\n

Trump and Mexican President Claudia Sheinbaum at the draw for this year\u2019s FIFA World Cup, which their countries will co-host this year.
\n Jia Haocheng Pool Photo\/AAP<\/p>\n

President of Mexico Claudia Sheinbaum has so far dealt with pressure from the Trump government by demonstrating that Mexico can handle illicit drug trafficking on its own<\/a>. Her government has ramped up policing and intelligence operations, and touts its successes \u2013 in terms of decreasing homicides, and increasing arrests and drug seizures.<\/p>\n

Trump and his advisors, however, are committed to military solutions \u2013 from the raid in Venezuela to sharing videos of illegal strikes on civilian boats<\/a> \u2013 in part as a way of projecting dominance in the region.<\/p>\n

This is entirely the wrong approach<\/a>. Successive Mexican governments used the military to target illicit drug trafficking \u2013 backed by US funding, US military training and US military hardware \u2013 without any real success. Violence worsened, but illicit drug trafficking continued.<\/p>\n

The US government is, for now, committed to its \u201cDonroe Doctrine\u201d. The violence and militarism of this approach might seem new, but it is little more than the Monroe Doctrine stripped of the veneer of isolationism. <\/p>\n

The original doctrine only ever spelled isolation from Europe. For the people of Mexico and much of the Americas, it was always a doctrine of US self-interest and military intervention.<\/p>\n","protected":false},"excerpt":{"rendered":"After the United States government celebrated the capture of Nicol\u00e1s Maduro in Venezuela, President Donald Trump issued warnings…\n","protected":false},"author":2,"featured_media":420063,"comment_status":"","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[18],"tags":[23,3,21,19,22,20,25,24],"class_list":{"0":"post-420062","1":"post","2":"type-post","3":"status-publish","4":"format-standard","5":"has-post-thumbnail","7":"category-united-states","8":"tag-america","9":"tag-news","10":"tag-united-states","11":"tag-united-states-of-america","12":"tag-unitedstates","13":"tag-unitedstatesofamerica","14":"tag-us","15":"tag-usa"},"_links":{"self":[{"href":"https:\/\/www.newsbeep.com\/us\/wp-json\/wp\/v2\/posts\/420062","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.newsbeep.com\/us\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.newsbeep.com\/us\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.newsbeep.com\/us\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.newsbeep.com\/us\/wp-json\/wp\/v2\/comments?post=420062"}],"version-history":[{"count":0,"href":"https:\/\/www.newsbeep.com\/us\/wp-json\/wp\/v2\/posts\/420062\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.newsbeep.com\/us\/wp-json\/wp\/v2\/media\/420063"}],"wp:attachment":[{"href":"https:\/\/www.newsbeep.com\/us\/wp-json\/wp\/v2\/media?parent=420062"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.newsbeep.com\/us\/wp-json\/wp\/v2\/categories?post=420062"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.newsbeep.com\/us\/wp-json\/wp\/v2\/tags?post=420062"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}