Escalating its response to the killing of Gen. Qassem Soleimani, Iran took two new steps against America on Sunday.

At the lower end, Iranian-directed militias launched rockets against the U.S. Embassy in Baghdad. These attacks indicate Iran’s desire to keep the United States off-balance as it prepares for more significant retaliation. Soleimani was a near-unique theological-political-military figure for the Iranian regime, matched only by Supreme Leader Ayatollah Ali Khamenei. Some suggest Iran will retaliate with more rocket attacks or via a cyber strike, but I believe Iran’s response will almost certainly come in a more noticeable fashion. These rockets are just a warm-up.