The US sent conflicting messages about how long a war with Iran might last as Israel launched new airstrikes on Monday, with the widening conflict reverberating across the Middle East and upending energy markets. -------- More on Bloomberg Television and Markets Like this video? Subscribe and turn on notifications so you don't miss any videos from Bloomberg Markets & Finance: https://tinyurl.com/ysu5b8a9 Visit http://www.bloomberg.com for business news & analysis, up-to-the-minute market data,