(Reuters) -Attacks on vessels by Iranian-backed Houthi militants in Yemen have disrupted international commerce on the shortest shipping route between Europe and Asia. The attacks, targeting a route that accounts for about 15% of the world’s shipping traffic, have pushed several shipping companies to reroute their vessels. The U.S. and Britain launched dozens of air strikes against Houthi military targets overnight on Jan. 11 and 12 in retaliation for the attacks, widening regional conflict stemming from Israel’s war in Gaza. Below are companies’ responses to the disturbances (in alphabetical …