According to a report on the website of the Wall Street Journal of the United States on December 5, American officials said that the United States secretly modified the "Hippocampus" multi barrel rocket system sent to Ukraine, so that these weapons could not be used to launch missiles with long range to Russia. The Biden government said that this is a preventive measure that must be taken to reduce the risk of a wider war with Moscow. According to the report, US officials said that the Pentagon had modified the launchers so that they could not launch long-range missiles, including US Army tactical missiles with a range of nearly 200 miles. According to the report, these previously undisclosed refitting actions show how the Biden government carefully maintains a balance between supporting the Ukrainian army and preventing the risk of escalation of the conflict with Moscow. It also reflects the concern of US government officials that Ukraine may not honour its commitment not to use US supplied weapons against Russian territory. It is reported that two Russian air bases exploded on the 5th. Ukraine carried out attacks using drones, and there is no evidence that weapons provided by the United States were used in the air strikes. Reported that the United States did not provide long-range military tactical missiles to Ukraine. However, if Kiev obtains these missiles from other sources, these modifications can ensure that Ukraine cannot use the "Hippocampus" system provided by the United States to launch army tactical missiles. Officials say Ukraine cannot use these launchers to launch other types of long-range missiles. The Pentagon declined to comment on the matter. The report points out that since February this year, the United States has gradually expanded the types of weapons provided to Kiev, not limited to the "Javelin" anti tank missiles obtained during the Trump administration. It is reported that recently, Ukraine's hope of acquiring a western aircraft was flatly rejected by the Biden government. Russia warned Washington not to provide long-range surface to surface missiles, such as army tactical missiles. "If Washington decides to provide Kiev with missiles with a longer range, it will cross the red line and become a direct party to the conflict," Russian Foreign Ministry spokesman Zaharova said in September Biden said in May this year that the United States would not provide Ukraine with a "rocket system capable of striking Russia". (Outlook New Times)