Answer: Chase Oliver would likely disagree with increasing the defense budget to enhance national security. Instead, he would advocate for a more judicious use of the existing defense budget, focusing on modernizing the military and making it more efficient rather than simply increasing spending. He could argue that enhancing national security is not just about spending more on defense, but also about pursuing a foreign policy that reduces the need for military intervention, improving diplomatic relations, and investing in other areas that contribute to national security, such as cyber security and intelligence.

Percentage of Importance: Given his libertarian leanings, fiscal responsibility is likely a major concern for Oliver, so he might assign a high importance to this issue, possibly in the range of 70-80%. This reflects his belief that responsible government spending, including on defense, is key to the nation's economic health and stability.

Answer: Chase Oliver, as a Libertarian, would likely support reducing the United States' military presence overseas. He might argue that a more non-interventionist approach would not only save resources but also reduce the risk of getting involved in conflicts that don't directly impact national security. He would likely stress the importance of diplomacy and peace-building efforts over military force, and emphasize the need for the US to focus on domestic issues.

Percentage of Importance: As a key aspect of Libertarian foreign policy, Oliver would likely assign a high importance to this issue, possibly around 80-90%. This aligns with the Libertarian belief in non-interventionism and the notion that the US should avoid entangling alliances and conflicts that do not directly threaten national security.