Republican presidential front-runner Donald Trump is scheduled to speak at the American Israel Public Affairs Committee (AIPAC) policy conference which is to take place in Washington between March 20-22.

Democratic presidential candidate Hillary Clinton will also speak at the event, as will Vice President Joe Biden, while Israeli Prime Minister Benjamin Netanyahu will deliver comments via satellite.

Trump has faced sharped criticism from his Republican opponents over his Israel policy and statements that he would remain "neutral" in an attempt to broker a peace deal between Israel and the Palestinians.

The AIPAC conference itself has also been at the center of controversy over the past week, as Netanyahu planned to speak in person at the event as well as visit the White House, but instead cancelled his trip.