The US is expected to send Ukraine precision bomb kits that will turn existing unguided munitions, or “dumb” bombs, into precision-guided “smart” bombs known as Joint Direct Attack Munitions, or JDAMs, according to multiple US officials.They are expected to be included in the next security aid package to Ukraine as soon as this week, the sources said, though officials did not say how many JDAMs would be provided, or what specific type.The precision bombs could help Ukraine attack fixed Russian defensive lines or other large targets.The JDAMs do not carry a serious risk of escalation, one official said, because of their relatively short range, similar to other weapons the US has provided.The precision Excalibur rounds fired from Ukrainian artillery have approximately the same range, while the Guided Multiple Rocket Launch System missiles launched from High Mobility Artillery Rocket Systems (HIMARS) have a significantly longer range than JDAMs."