Changes

*Mitchell, Ellen (January 19, 2018). [http://thehill.com/policy/defense/369759-china-russia-listed-as-top-threats-in-pentagons-new-national-defense-strategy China, Russia listed as top threats in Pentagon's new National Defense Strategy]. ''The Hill''. Retrieved January 19, 2018.

*Mitchell, Ellen (January 19, 2018). [http://thehill.com/policy/defense/369759-china-russia-listed-as-top-threats-in-pentagons-new-national-defense-strategy China, Russia listed as top threats in Pentagon's new National Defense Strategy]. ''The Hill''. Retrieved January 19, 2018.

*Ali, Idrees (January 19, 2018). [https://www.reuters.com/article/us-usa-military-china-russia/u-s-military-puts-great-power-competition-at-heart-of-strategy-mattis-idUSKBN1F81TR U.S. military puts 'great power competition' at heart of strategy: Mattis]. ''Reuters''. Retrieved January 19, 2018.</ref>

*Ali, Idrees (January 19, 2018). [https://www.reuters.com/article/us-usa-military-china-russia/u-s-military-puts-great-power-competition-at-heart-of-strategy-mattis-idUSKBN1F81TR U.S. military puts 'great power competition' at heart of strategy: Mattis]. ''Reuters''. Retrieved January 19, 2018.</ref>

*Based on several U.S. strategic documents and other government reports, the Trump Administration was taking a stronger stance against China compared to its predecessors.<ref>Bishop, Bill (January 26, 2018). [https://www.axios.com/trumps-new-china-strategy-appears-more-contentious-52f46998-7f4a-4a88-936b-76905f7bd708.html Trump's new China strategy appears more contentious]. ''Axios''. Retrieved January 29, 2018.</ref>

*Based on several U.S. strategic documents and other government reports, the Trump Administration was taking a stronger stance against China compared to its predecessors.<ref>Bishop, Bill (January 26, 2018). [https://www.axios.com/trumps-new-china-strategy-appears-more-contentious-52f46998-7f4a-4a88-936b-76905f7bd708.html Trump's new China strategy appears more contentious]. ''Axios''. Retrieved January 29, 2018.<br>See also:

*Davis, Bob; Wei, Lingling (August 1, 2018). [https://www.wsj.com/articles/u-s-expected-to-unveil-25-tariffs-on-proposed-200-billion-in-chinese-imports-1533147299 U.S. Pressures China With Punitive Trade, Defense Measures]. ''The Wall Street Journal''. Retrieved August 3, 2018.</ref>

*February 2, 2018—The Trump Administration released its Nuclear Posture Review, which took a tougher stance against Russia than the Obama Administration and called for actions to expand U.S. nuclear capabilities in order to counter Russia and, to a lesser extent, China, Iran, and North Korea.<ref>Multiple references:

*February 2, 2018—The Trump Administration released its Nuclear Posture Review, which took a tougher stance against Russia than the Obama Administration and called for actions to expand U.S. nuclear capabilities in order to counter Russia and, to a lesser extent, China, Iran, and North Korea.<ref>Multiple references:

*Tomlinson, Lucas; Griffin, Jennifer (February 3, 2018). [http://www.foxnews.com/politics/2018/02/03/pentagon-announces-plan-to-expand-nuclear-arsenal-in-face-russian-threat.html Pentagon announces plan to expand nuclear arsenal in face of Russian threat]. ''Fox News''. Retrieved February 7, 2018.

*Tomlinson, Lucas; Griffin, Jennifer (February 3, 2018). [http://www.foxnews.com/politics/2018/02/03/pentagon-announces-plan-to-expand-nuclear-arsenal-in-face-russian-threat.html Pentagon announces plan to expand nuclear arsenal in face of Russian threat]. ''Fox News''. Retrieved February 7, 2018.