<span>The national debt has decreased
last time happened was in 1990</span>
Answer:
The United States of America
Explanation:
During<span> the 1960s the availability of primary sources made historical research and</span>writing<span> possible and the debate became more vigorous. Historians Herbert Feis and Gar Alperovitz raised searching questions about the </span>first use<span> of nuclear weapons and their broader political and diplomatic implications.</span>
