The advanced U.S. fighter aircraft will mark a significant upgrade to Ukraine’s air force, but their impact on the war with Russia will hinge on several factors.

In its February update, the Oxford English Dictionary (OED) includes numerous new words of Nigerian origin. Many of the words relate to food preparation, urban transportation, the shortening of conventional English words, and the incorporation of words from indigenous languages. For example, ‘mama put’ refers to female food venders, ‘okada’ are passenger-carrying motorcycles, ‘guber’ refers to gubernatorial, and ‘danfo’ is the Yoruba work for urban minibuses.

Floods resulting from the autumn rainy season have devastated central and southeastern Nigeria. According to Nigerian media, the flooding is the worst in fifty years, and has already killed more than…