By Michelle Nichols
UNITED NATIONS (Reuters) - A spillover of violence from Syria's civil war into the Israeli-occupied Golan Heights is jeopardizing a decades old ceasefire between Israel and Syria, U.N. Secretary-General Ban Ki-moon said in a report to the U.N. Security Council on Wednesday.
Ban recommended to the 15-member council that self defense capabilities of a U.N. peacekeeping mission in the area, known as UNDOF, be enhanced, "including increasing the force strength to about 1,250 and improving its self defense equipment."
Israel captured the Golan Heights from Syria in a 1967 war, and the countries technically remain at war. Syrian troops are not allowed in an area of separation under a 1973 ceasefire formalized in 1974.
UNDOF monitors the area of separation, a narrow strip of land running 45 miles from Mount Hermon on the Lebanese border to the Yarmouk River frontier with Jordan.
"The ongoing military activities in the area of separation continue to have the potential to escalate tensions between Israel and the Syrian Arab Republic and to jeopardize the ceasefire between the two countries," Ban said.
The 15-member Security Council is due later this month to renew the mandate of UNDOF for six months. Ban recommended that the force, which has been operating with about 900 troops, be boosted to its authorized strength of 1,250.
The peacekeeping mission has been caught in the middle of fighting in the Golan Heights area of separation, which had been largely quiet since the ceasefire. Stray shells and bullets have also landed on the Israeli-controlled side and Israeli troops have fired shells into Syria in response.
"The presence of the (Syrian army) and unauthorized military equipment in the area of separation is a grave violation of the 1974 Agreement of Disengagement between Israeli and Syrian forces," Ban said in the report. "(Israeli) retaliatory fire across the ceasefire line is also a serious violation."
"Any Israeli military action inside Syria puts the ceasefire at risk. I call upon Israel to exercise maximum restraint to prevent an escalation of the situation," he said.
NO NEED FOR RUSSIAN TROOPS
Last week two peacekeepers were wounded when Syrian rebels captured a border post, but were then driven out by Syrian government troops, while rebels have also detained peacekeepers on several different occasions before releasing them.
Japan and Croatia have already withdrawn troops from UNDOF due to the violence and Austria started bring home its contingent of some 380 troops on Wednesday, as the United Nations urgently tried to find another country to fill the gap.
About 170 Fijian troops are due to deploy later this month to replace the Croatian troops, the United Nations has said.
A senior Western diplomat said that Fiji had also offered to send additional troops and that the Philippines, which already has some 340 troops in UNDOF, was considering sending more troops after Ban lobbied Manila. India is also a part of UNDOF with nearly 200 troops.
Russia has offered to replace Austria's troops, but the agreement with Israel and Syria precludes permanent members of the U.N. Security Council from taking part.
A U.N. official told Reuters that sufficient offers had already been made from other countries to fill the gap that will be left by Austria's departure.
About 70 Austrian soldiers were due to return home on Wednesday and the United Nations said they were continuing talks with Vienna on a timetable for withdrawing its remaining troops. Austria plans to bring all its troops home by the end of June but diplomats said Ban asked them to delay that by one month.
(Additional reporting by Louis Charbonneau; Editing by Vicki Allen)