Jefferson didn't want to expand much and he really wanted to follow everything that George Washington said in his farewell address. Also, look at the acts that were passed during Jefferson's terms. For Polk, he was all about expanding westward. He gained Texas, bought the Oregon Territory, and gained California, Nevada, New Mexico, and Arizona in the Treaty of Guadalupe Hidalgo and the Gasden Purchase. So, Polk followed the theory of Manifest Destiny while Jefferson didn't want to make treaties or even trade with other countries. He really wanted to keep the government stable and avoid war.
"To what extent should nations respond with diplomacy to the expansionist policies of other states?"
Briefly, anybody who is in favour of the policies to expand the territory of the land/state he/she belongs to is a pro-expansionist person....
A pro-expansionist is someone who supports and advocates for the expansion of territories, influence, or domains, often through political or military means. They believe in increasing the reach and control of their country or group.
Manchuria
Oil and raw materials.
The Oregon Territory was split between the United States and Britain.
they were not
Washington's farewell address had a significant impact on the foreign policies of the presidents who served in the early years of the US. It emphasized the importance of neutrality and avoiding entanglement in foreign alliances, which shaped the isolationist policies of presidents like Thomas Jefferson and James Monroe. It also highlighted the need for the US to focus on domestic issues and prioritize its own interests, influencing the presidents to pursue a more nationalist approach in foreign affairs.
The New Frontier.
Thomas Jefferson did change the federal financial policies by opposing a very strong centralized government.
protectionist policies were emphasized
this answer can not be proven