Critical thinking is the ability to think clearly and rationally about what to do or what to believe. It includes the ability to engage in reflective and independent thinking. Someone with critical thinking skills is able to do the following : understand the logical connections between ideas.
By their calculation, the United States spends more than the next seven countries combined. In 2014, the most recent year available, the United States led the world in military spending at $610 billion, marking 34 percent of the world total, SIPRI found. U.S. expenditures were nearly three times higher than China, the second-highest nation with an estimated $216 billion in military spending.
The $619 billion military expenditure in the U.S. nearly outpaced the combined spending of every other country on this list in 2013. At the start of 2013, the U.S. had nearly 8,000 nuclear warheads in reserve. Since 2001, U.S. defense spending has risen from $287 billion to $530 billion.