The US Federal Reserve has strongly signaled it will raise interest rates by half a percentage point this week to rein in soaring inflation, and likely continue hiking throughout this year.

The Fed has long played a decisive role when the world's largest economy faces tough times. Here are some of its major actions since the 2008 global financial crisis:

November 2008: The Fed began injecting liquidity into financial markets following the collapse of Lehman Brothers investment bank. The central bank launched three such programs before ending asset purchases in June 2014.

December 2008: The central bank cut its lending rate to zero amid the crisis, where it remained until December 2015.

October 2017: The Fed began reducing the holdings on its balance sheet, which had ballooned from less than $900 billion before the crisis to $4.5 trillion.

December 2018 to August 2019: Interest rates peaked in the range of 2.25 percent to 2.5 percent.

Fall 2019: The Fed cut rates several times to the 1.5-1.75 percent range as the trade war launched by then-president Donald Trump slowed growth. The Republican leader had criticized the bank for its high rates.

From asset purchases to interest rates, the Federal Reserve has long played a pivotal role when the US economy faces a crisis
From asset purchases to interest rates, the Federal Reserve has long played a pivotal role when the US economy faces a crisis AFP / Stefani Reynolds

March 3, 2020: The Fed cut its lending rate by 50 basis points to between one and 1.25 percent.

March 16, 2020: As Covid-19 spread across the country and the economy shut down, the Fed slashed its lending rate by 100 basis points to zero and resumed its asset purchase policy, which eventually reached $120 billion per month in Treasury bonds and mortgage-backed securities.

November 3, 2021: The Fed announced it will begin slowing the pace of its asset purchases, with a view towards ending them entirely by the following June, which would set the stage for rate hikes to fight inflation.

December 15, 2021: Recognizing that inflation will not be "transitory," as top officials had believed, the central bank accelerated the end of its asset purchases to March.

March 16, 2022: The central bank raised interest rates for the first time since 2018 to the 0.25-0.50 percent range.

April 6, 2022: The minutes from the Fed's March policy meeting are released, showing that many participants see one or more 50-basis point rate hikes as necessary if inflation pressure continues.

April 29, 2022: The Fed's preferred inflation gauge, the personal consumption expenditures price index, rises 6.6 percent year-on-year and 0.9 percent month-on-month in March, both faster paces than the month prior.