**Core Concept**
The 2nd amalgam war refers to a significant event in the history of dentistry, particularly in the development and acceptance of amalgam as a dental restorative material. This concept is rooted in **dental history** and the evolution of **restorative dentistry**. The amalgam wars were a series of debates and controversies surrounding the use of amalgam.

**Why the Correct Answer is Right**
Unfortunately, without the specific details of the options provided, it's challenging to pinpoint the exact individual or group responsible for initiating the 2nd amalgam war. However, the amalgam wars were characterized by strong opinions on the safety and efficacy of amalgam fillings, with some proponents arguing for its durability and cost-effectiveness, while opponents raised concerns about mercury toxicity and other health risks.

**Why Each Wrong Option is Incorrect**
**Option A:** Without specific information, it's impossible to assess the accuracy of this option directly.
**Option B:** Similarly, this option cannot be evaluated without more context.
**Option C:** This option also lacks the necessary details for a thorough analysis.
**Option D:** The same issue applies to this option, making it difficult to determine its validity.

**Clinical Pearl / High-Yield Fact**
A key point to remember is that the amalgam wars reflect broader themes in the history of medicine and dentistry, including the ongoing quest for safe, effective, and socially acceptable treatments. Understanding these historical contexts can provide valuable insights into current practices and controversies.

**Correct Answer:**