Will it lead to WW3? A year since the 7 October attack, the conflict between Israel and Hamas is escalating into a regional war. But some think it threatens to become even bigger.
The year the Middle East imploded

Glossary
Palestinian - Palestine is an area of the eastern Mediterranean region, including the West Bank, Gaza Strip and parts of modern Israel. It has been fought over by Arab and Jewish national movements for many years.
Hamas - A militant Palestinian organisation, which has controlled the Gaza Strip since 2007. It is listed as a terrorist organisation in the UK.
Gaza strip - The smaller of two Palestinian territories, home to two million people. It is located on the Mediterranean coast, surrounded by Israel and Egypt.
Middle East - The lands around the east of the Mediterranean Sea and Arabia.
Lebanon - A small country on the eastern Mediterranean coast that has been in the grip of an economic crisis for over a year. It has a native population of just 4.7 million, but migrants and refugees have brought its total population up to almost 7 million.
Hezbollah - A militant organisation based in Lebanon, classified in the UK as a terrorist group. It has made direct attacks on Israel and is believed to have been responsible for assassinating Lebanon's former Prime Minister Rafic Hariri.
Islamist - An advocate of Islamic fundamentalism. Often used in the West to describe those who believe in imposing Sharia (Islamic law) on societies.