What's behind Egypt's move towards possible military involvement in Saudi-Yemen conflict?

CAIRO, Oct 19 (Reuters) - Egypt's parliament is expected to vote next week on whether toauthorise the armed forces to help defend Saudi Arabia against attacks by Yemen'sHouthis if Riyadh requests its support.The move would bring the Arab world's most populous country closer to direct military involvement in the widening conflicts unleashed by the US-Israeli air assault on Iran in February.

