Trump's partisan comments received cheers or jeers from the crowd, an expression of political views in uniform that would typically result in a reprimand.
The painting depicts the Royal Navy second-rate ship of the line Temeraire, which helped win the 1805 Battle of Trafalgar, being hauled away by a tug at the end of its life.
Rather than debating the causes of climate change or assigning blame, military leaders focus on how warming undermines security, and on practical steps to slow its advance and minimize damage.