The U.S. Federal Reserve on Wednesday decided to raise key interest rates for the first time since 2018 and signaled six more quarter-percentage-point rate increases this year amid high inflation and the war in Ukraine. Upon concluding a two-day meeting of the policy-setting Federal Open Market Committee, the bank said it will lift its target range for the federal funds rate to 0.25 to 0.5 percent after maintaining the level at near-zero to support the economic recovery from the downturn triggered by the coronavirus pandemic. The Fed also said it expected at “a coming meeting” to start reducin…