Which BEST describes the reason for US involvement in Japan, Korea, and Vietnam

What will not cause political parties to change or develop

Which goal was most likely to be supported by both poor peasents and city merchants in the early years of the french revolution? an end to feudal privileges overthrow of the monarchy destruction of the power of the catholic church suppression of the third estate take your time to answer, i'm not in a big rush

What was the final spark that ignited the “european powder keg” and started world war 1