Stockpile concerns push the defense establishment to rely on less advanced systems, with mixed results. Israel has begun limiting its use of its most advanced missile interceptors as ongoing Iranian barrages strain stockpiles, forcing the military to increasingly rely on upgraded but less capable systems, according to a Wall Street Journal report published Friday.

The exchange of fire between Israel and Iran-backed militia Hezbollah in Lebanon continued on Monday, with Israeli strikes targeting areas in the capital, Beirut. The Israeli military said it was currently attacking targets linked to the Shiite militia Hezbollah in Beirut.

Looking to the stars is an important part of how Pacific voyagers navigate. But deep knowledge of ocean currents, winds and waves, along with mental mapping strategies, are critical too.