Donald Trump has publicly mused about the idea of acquiring Greenland and even whimsically suggested incorporating Canada into the United States, though these comments should be seen more as rhetorical or playful rather than serious policy proposals. As it stands, the United States has a total area of approximately 3,796,742 square miles (9,833,587 square kilometers). If Trump's hypothetical vision were to come to fruition, adding Canada, which spans about 3,855,100 square miles (9,984,670 square kilometers), would dramatically increase the size of the USA to around 7,651,842 square miles (19,818,257 square kilometers).
 

Incorporating Greenland into this scenario, with its area of roughly 836,330 square miles (2,166,086 square kilometers), would further expand the USA to an enormous 8,488,172 square miles (21,984,343 square kilometers). However, Greenland is an autonomous country within the Kingdom of Denmark, and any transaction would require not only Denmark's agreement but also the approval of Greenland's own government and populace, neither of which have shown any interest in such a move. Canada, on the other hand, is an independent nation with a strong national identity, making any political or legal merger with the USA highly implausible.
 

These hypothetical expansions are far from practical or realistic due to significant geopolitical, legal, and cultural hurdles. The idea of purchasing or annexing sovereign territories in today's world is not only politically complex but also fraught with international law issues. While Trump's comments might serve as a means to draw attention or negotiate from a position of strength, they are not grounded in feasible policy actions. Thus, while we can entertain the idea for the sake of discussion, the actual likelihood of these territories becoming part of the USA remains negligible.