The United States has condemned Iran's airstrike and breach of Pakistan's sovereignty.Responding to a question during his press briefing in Washington, US State Department Spokesperson Matthew Miller said we always want to see peace and stability maintained, especially in this region.About Pakistan's response that it reserves the right to respond illegal act of breaching Pakistan's sovereignty by Iran, the US State Department Spokesperson said we hope that the issue can be peacefully resolved.He said we have seen Iran violated the sovereign borders of three of its neighbours in just past couple of days and we do condemn these strikes.Source: Radio Pakistan