What efforts have been made towards unification of forces ?

Explanation

### Step-by-Step Solution

1. **Understanding Fundamental Forces**:
- In physics, there are four fundamental forces that govern interactions in the universe: strong nuclear force, weak nuclear force, electromagnetic force, and gravitational force.

2. **Concept of Unification of Forces**:
- The unification of forces refers to the idea of combining these fundamental forces into a single theoretical framework. This would mean that all forces can be described by one overarching theory, simplifying our understanding of physical interactions.

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