Jan 13 (Reuters) - Here is a timeline of events since a six-month ceasefire between Israel and Hamas in the Gaza Strip ended last month.

Dec. 19, 2008 - Ceasefire expires.

Dec. 24 - Gaza Palestinian militants fire rockets at Israel.

Dec. 27 - Israel launches air strikes on Gaza in response to the rocket and mortar fire, killing at least 229 Palestinians.

Dec. 28 - Israeli air strikes hit the Islamic University and target smuggling tunnels in the Gaza Strip.

Dec. 31 - Emergency U.N. Security Council session on Arab resolution calling for ceasefire adjourns without a vote.

Jan. 1, 2009 - Israel kills Nizar Rayyan, a hardline Hamas leader, in an air attack on his Gaza Strip home.

Jan. 3 - Israel launches a ground offensive in the Gaza Strip, sending tanks and infantry into battle with Hamas.

Jan. 4 - Israelis cut the strip in half from the border fence to the Mediterranean. Troops and armour ring Gaza City.

Jan. 5 - French President Nicolas Sarkozy, on a peace mission, and U.S. President George W. Bush, appeal for a ceasefire.

Jan. 6 - Israeli shelling kills 42 Palestinians at a U.N. school in Jabalya refugee camp where civilians had taken shelter.

-- Egypt, backed by France and other European powers, proposes an immediate ceasefire.

Jan. 7 - Violence resumes after a three-hour Gaza truce.

-- Israel says it views "positively" talks with Cairo over a wider ceasefire plan promoted by Egyptian President Hosni Mubarak and Sarkozy.

Jan. 8 - Rockets fired from Lebanon strike northern Israel, wounding two people.

-- The U.N. Security Council votes for a resolution calling for an immediate ceasefire in Gaza, but the United States abstains, citing Egyptian-mediated talks on a truce.

-- The U.N. Relief and Works Agency (UNRWA), which distributes the majority of aid in Gaza, suspends its operations after an Israeli tank shell kills an UNRWA driver in a convoy.

Jan. 9 - Israeli Prime Minister Ehud Olmert rejects the U.N. resolution as "unworkable" and, noting Palestinians fired rockets at Israel, says the army will go on defending Israelis.

Jan. 10 - Hamas leader Khaled Meshaal accuses Israel of perpetrating a "holocaust" in Gaza and says his group will not consider a ceasefire until Israel ends its assault.

-- Palestinian President Mahmoud Abbas meets Mubarak in Cairo. Egypt later says it will not accept foreign troops on its side of the border with Gaza to stop arms smuggling.

Jan. 11 - Israeli forces edge into the Gaza Strip's most populous area, throwing army reservists into battle.

-- Israel says stopping arms smuggling from Egypt to the Gaza Strip should be done by Egyptian forces and rejects the idea of an international force.

Jan. 12 - Olmert, Israeli Defence Minister Ehud Barak and Foreign Minister Tzipi Livni decide against ordering troops in the next two or three days to engage in all-out urban warfare.

Jan. 13 - U.N. Secretary-General Ban Ki-moon heads to the region for talks with leaders aimed at ending the bloodshed.

-- Hamas says it has "substantial reservations" about an Egyptian ceasefire proposal.

-- EU Aid Commissioner Louis Michel says Israel's military strikes are disproportionate and breach international law.

-- Israeli forces tighten their hold around the city of Gaza and its top general says "there is still work" ahead against Hamas.

-- The Palestinian death toll since Israel's military assault began, stands at 933, medical officials say. Almost 4,000 Palestinians have been wounded. The Israeli toll is 13, 10 of whom are soldiers killed in the campaign.

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