While diplomats meet in Geneva, military forces are repositioning across West Asia.
The United States has deployed thousands of troops, combat aircraft, and two carrier strike groups near Iran. Officials say the buildup is precautionary, but it adds urgency to ongoing nuclear negotiations.
Iran maintains that its enrichment program is peaceful and refuses to abandon it completely. The US argues that continued enrichment poses an unacceptable risk.
Talks have shown signs of seriousness, but no concrete agreement has emerged.
For now, both diplomacy and deterrence are operating side by side.
