South Korea & United States — United States Department of the Navy

South Korea: Government supporting shipbuilding cooperation, benefits from Hanwha's expansion.

United States — United States Department of the Navy: Customer of Austal — Austal USA, could benefit from increased shipbuilding capacity.

South Korea: South Korea's alliance with the US is strained by the unilateral decision to reduce drills, raising concerns about defense readiness and the reliability of the US security guarantee. President Lee Jae Myung stressed the importance of the alliance.

United States — United States Department of the Navy: The US Navy is affected by the redeployment of the USS George Washington to the Middle East, leaving the Pacific without a carrier. This may impact regional security posture.

South Korea: South Korea's Kospi plunged 9% as semiconductor stocks collapsed, making it a key barometer of global chip sentiment.

United States — United States Department of the Navy: Oversees maritime operations; redirected six ships as part of blockade.

South Korea: Home to Sinokor, whose vessels were blacklisted; affected by shipping disruptions.

United States — United States Department of the Navy: US Navy coordinates tanker movements through the strait, helping restore oil exports; praised by Energy Secretary.

South Korea: South Korea has increased oil imports from the US and is affected by higher energy costs. Its stock market has seen declines.

United States — United States Department of the Navy: Fifth Fleet based in Bahrain, targeted by Iran. Enforcing blockade and conducting operations.

South Korea: South Korean markets rose, with chip stocks gaining.

United States — United States Department of the Navy: The US Navy continues its naval blockade of Iran, redirecting and boarding commercial ships. It monitors shipping traffic in the region.