The United States is massively building up its potential for nuclear and non-nuclear strikes in Latin America and the Caribbean by acquiring unprecedented freedom of action in seven new military, naval and air bases in Colombia. The development – and the reaction of Latin American leaders to it – is further exacerbating America's already fractured relationship with much of the continent.

The new US push is part of an effort to counter the loss of influence it has suffered recently at the hands of a new generation of Latin American leaders no longer willing to accept Washington's political and economic tutelage. President Rafael Correa, for instance, has refused to prolong the US armed presence in Ecuador, and US forces have to quit their base at the port of Manta by the end of next month.
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And, this being US foreign policy, a tell-tale trail of oil is evident. Brazil had already expressed its unhappiness at the presence of US naval vessels in its massive new offshore oilfields off Rio de Janeiro, destined soon to make Brazil a giant oil producer eligible for membership in Opec. The fact that the US gets half its oil from Latin America was one of the reasons the US Fourth Fleet was re-established in the region's waters in 2008. The fleet's vessels can include Polaris nuclear-armed submarines – a deployment seen by some experts as a violation of the 1967 Tlatelolco Treaty, which bans nuclear weapons from the continent.