What is the difference between a letter written by an eyewitness to an event and an encylopedia entry about the same event?

Why was mao zedong’s communist china ready to use military tactics against the troops of us general douglas macarthur in korea? a. mao zedong had long planned to declare war against the united states. b. us troops kept marching farther into north korea, getting closer to the chinese border. c. us president harry truman threatened to use nuclear weapons against china. d. kim il sung had requested china’s to declare war against the united states.

What principle did president truman invoke in sending u.s. troops into south korea without first asking congress to declare war?

In an economic downturn, what can happen in countries that depend on high taxes to fund social programs?